Platonism
Plato
The physical world is a copy of something more real and more stable.
c. 400 BCEIdeas
Pick a question and see how the schools answer it, one line each.
Plato
The physical world is a copy of something more real and more stable.
c. 400 BCEAristotle
Reality is what we can observe, sorted by what each thing is for.
c. 340 BCEKapila (by tradition), Ishvarakrishna
Consciousness and nature are two different kinds of thing, and mixing them up is the mistake.
text c. 350 CEThe Upanishads, Shankara and later commentators
The deepest reality is Brahman, and the self you truly are is bound up with it.
Upanishads onward; Shankara c. 8th c. CELaozi, Zhuangzi
Reality is a way things already move. Forcing a pattern onto it is the error.
c. 400 BCEHusserl, Heidegger, Merleau-Ponty
Start from experience as it is lived, before the theory explains it away.
1900 onwardKanada
The world is made of a few kinds of thing, substance, quality and motion among them, built up from tiny atoms.
c. 2nd c. BCE to 1st c. CEAl-Kindi, Al-Farabi, Ibn Sina
That a thing exists is not the same fact as what it is.
c. 1020 CEZhuangzi
Reality keeps changing shape, and our categories are lenses, not the thing itself.
c. 300 BCENagarjuna, Chandrakirti
Nothing has a nature of its own. Things are real by depending on other things.
c. 150 CEHeraclitus, Parmenides, Zeno and the early atomists
Look for the one stuff or law beneath all change: water, fire or unchanging being.
c. 500 BCEPlotinus, Porphyry and Proclus
Everything flows from a single source, the One, and the soul can climb back toward it.
c. 250 CENishida Kitaro, Tanabe Hajime and Nishitani Keiji
Beneath subject and object lies a field of nothingness in which all things arise.
1911 onwardG. W. F. Hegel, after Kant, Fichte and Schelling
Reality is a whole that develops through conflict and comes to know itself in history.
1807 onwardSiddhartha Gautama
Nothing is permanent and there is no fixed self; things arise from causes and pass away.
c. 5th c. BCEEpicurus
Everything is atoms moving in empty space, the soul included, so death is nothing to fear.
c. 307 BCEDescartes, Spinoza, Leibniz
Reason can reach knowledge the senses never earn on their own.
1637 onwardLocke, Berkeley, Hume
If it did not come through experience, I do not yet have a reason to believe it.
1689 onwardImmanuel Kant
The mind structures experience. We never meet the world with no form of our own.
1781 onwardPeirce, James, Dewey
I trust an idea when I can see what it does.
1878 onwardAl-Kindi, Al-Farabi, Ibn Sina
A mind can know that it exists with every sense set aside.
c. 1020 CESor Juana Inés de la Cruz
Knowledge is open to anyone who studies, and it can be found anywhere, even in a kitchen.
1691Anselm, Thomas Aquinas, Duns Scotus, William of Ockham
Faith and reason can look at the same world. One does not cancel the other by arriving.
c. 1270 CEZhuangzi
Hold every certain view loosely: a dreamer can be sure of waking and still be mistaken.
c. 300 BCENagarjuna, Chandrakirti
Every view depends on conditions; use everyday truths without mistaking them for the final word.
c. 150 CEWollstonecraft, Gilligan, Noddings, Harding, Crenshaw
Where you stand shapes what you notice, so a fuller picture needs more than one position.
1792 onwardProtagoras, Gorgias and other paid teachers in Athens
Each person is the measure of how things seem, so learn to argue both sides of every question.
c. 450 BCEPyrrho of Elis, Sextus Empiricus and Agrippa
When the arguments balance, suspend judgment, and calm follows.
c. 300 BCEBrihaspati (traditional founder), Purandara and, by some accounts, Jayarashi
Trust only what the senses show; inference and scripture can mislead.
c. 600 BCE onwardAkshapada Gautama
Knowledge comes through reliable means: perception, inference, comparison and trustworthy testimony.
c. 2nd c. CE (text)Zeno of Citium, Epictetus, Marcus Aurelius, Seneca
Virtue, a clear mind and a hard line around what is not mine to control.
c. 300 BCEEpicurus
Modest pleasure, calm and a life that fear and pain do not run.
c. 307 BCEAntisthenes, Diogenes, Crates
Set down status, wealth and the script. Live simply.
c. 380 BCEConfucius, Mencius, Xunzi
Become a better person inside the duties, rituals and family you actually have.
c. 500 BCELaozi, Zhuangzi
Stop forcing. Act in a way that fits how things already go.
c. 400 BCESiddhartha Gautama
Suffering has a cause. A path of life can loosen it.
c. 5th c. BCEMahavira, in a much older lineage
Do not harm what lives. That constraint comes before convenience.
c. 6th to 5th c. BCEPatanjali
Train body and mind, repeatedly, until the noise quiets.
text c. 400 CEJalal al-Din Rumi
Welcome each feeling as a guest. It may stay; it does not decide what you do.
c. 1258 CEJaimini
Dharma is read from the Veda’s injunctions. Ask what the rite itself requires.
c. 3rd c. BCE to 2nd c. CEAnselm, Thomas Aquinas, Duns Scotus, William of Ockham
Name the aim and name what else the act brings about. A good aim does not erase a chosen harm.
c. 1270 CEVoltaire, Montesquieu, Diderot
Let people believe what you think is wrong. Step in only to stop a real harm.
c. 1750Simone de Beauvoir
Act so that your freedom widens other people’s, never by deciding their part for them.
1947Mohandas Gandhi
The means shape the end: resist injustice with truth and without violence, and bear the cost yourself.
1906 onwardThe Nguni proverb, Desmond Tutu, Nelson Mandela
A person becomes a person through other people. Freedom that stops at one household is unfinished.
Southern African proverbBentham, Mill, Singer
Do what brings the most well-being to everyone affected, counting each person alike.
1789 onwardHobbes, Locke, Rousseau, Rawls
Right conduct includes rules you could defend to anyone they affect.
1651 onwardBodhidharma, Huineng, Dogen, Hakuin
Give the task in front of you your whole attention. The practice is the ordinary hour.
from c. 500 CEHannah Arendt
Pause before routine does the harm, then begin something, and keep it going by forgiving and promising.
1951 onwardMozi and the later Mohists
Test a teaching by its basis, what people see and what it does when used. Keep what earns its cost.
c. 430 BCEHaudenosaunee, Māori, Lakota and other Indigenous knowledge keepers
Act as a relative of the land and living things, with the seventh generation in mind.
Living traditionsAristotle
Ask whether the conclusion actually follows, and from what was observed.
c. 340 BCEFrege, Russell, Moore, Wittgenstein
Take the sentence apart until the concept is precise enough to fail.
c. 1900 onwardDescartes, Spinoza, Leibniz
A valid chain of reason outranks a vivid impression.
1637 onwardImmanuel Kant
Check the limits of what a mind like ours can even claim to know.
1781 onwardAkshapada Gautama
A claim earns its way by a reliable means: what was perceived, what follows and who is in a position to say.
c. 2nd c. CE (text)Plato
Beauty is a glimpse of a higher order showing through a particular thing.
c. 400 BCEImmanuel Kant
Beauty is a judgment we make, and we still expect others to feel its pull.
1781 onwardConfucius, Mencius, Xunzi
Beauty is learned attention: ritual, music and the forms a culture practices.
c. 500 BCEHusserl, Heidegger, Merleau-Ponty
Beauty is a way experience organizes itself when you stay with it.
1900 onwardAristotle
Beauty lies in order and proportion, a whole whose parts fit together.
c. 340 BCEPlotinus, Porphyry and Proclus
Beauty is the One shining through things, and to see it the soul must grow beautiful itself.
c. 250 CEBodhidharma, Huineng, Dogen, Hakuin
Beauty lives in the simple, the worn and the passing, seen without grasping.
from c. 500 CEKierkegaard, Sartre
No purpose is handed to you. You choose one, and you answer for the choice.
1843 onwardAlbert Camus
The universe will not confirm any meaning, so live fully and clearly in spite of that.
1942Nietzsche
No meaning or value is built into the world; values are made by people, not found.
1880sPeirce, James, Dewey
A purpose is real if it changes what people can do.
1878 onwardMaya Angelou
Telling the truth of a life, above all a silenced one, gives it worth and keeps it from vanishing.
1969 onwardZhuangzi
A life need not be useful to someone else’s plan; it can fit its own natural course.
c. 300 BCEBodhidharma, Huineng, Dogen, Hakuin
Meaning is not found by chasing it. It shows up when you stop grasping and look.
from c. 500 CEBrihaspati (traditional founder), Purandara and, by some accounts, Jayarashi
This life is the only one, so enjoy it well and waste none of it on ritual.
c. 600 BCE onwardThiruvalluvar, Kabir and the bhakti poets
Love God and live rightly in ordinary life; birth and caste do not decide your worth.
c. 300 BCE to 1500 CEAristotle
A life is for flourishing: using reason well and acting with virtue over a whole lifetime.
c. 340 BCEBentham, Mill, Singer
A life goes well when it holds happiness and adds to the happiness of others.
1789 onwardZeno of Citium, Epictetus, Marcus Aurelius, Seneca
A life is for virtue, living in agreement with nature and reason; the rest matters less than it seems.
c. 300 BCEConfucius, Mencius, Xunzi
Order comes from cultivated people in the roles and rites they share.
c. 500 BCEHan Fei
People chase advantage. Clear law has to hold the order virtue will not.
c. 250 BCEAristotle
A city is for living well, not merely for staying alive or staying rich.
c. 340 BCEAntisthenes, Diogenes, Crates
Most of what a city calls necessary is status. I can set it down.
c. 380 BCEMohandas Gandhi
Self-rule begins with ruling yourself, and an unjust law may be refused openly, without violence.
1906 onwardThe Nguni proverb, Desmond Tutu, Nelson Mandela
A community governs well when it repairs harm and restores people to each other, rather than taking revenge.
Southern African proverbBentham, Mill, Singer
Laws and policies are good when they improve lives overall, and should change when they do not.
1789 onwardHobbes, Locke, Rousseau, Rawls
Authority is justified by terms free people could accept, and rules are fair if chosen without knowing your own place.
1651 onwardWollstonecraft, Gilligan, Noddings, Harding, Crenshaw
A fair city counts the unpaid work of care and listens to those at its edges.
1792 onwardHannah Arendt
A public is made when people appear to one another and act together. Power lasts while they do.
1951 onwardMozi and the later Mohists
Care for every family in the city as for your own, and drop customs that cost the many more than they give.
c. 430 BCEIbn Khaldun of Tunis, author of the Muqaddimah
Power rests on a group’s solidarity, and comfort slowly wears it away.
1377Kwasi Wiredu, Kwame Gyekye and the Akan wisdom tradition
Keep talking until everyone can agree, rather than counting votes.
Traditional; written works from 1980Karl Marx and Friedrich Engels
Politics follows economics: change who owns the work and how it is organized.
1844 onwardHorkheimer, Adorno, Marcuse and Habermas, with Gramsci and, in a related vein, Foucault
Ask whose interests the common sense of an age quietly protects.
1937 onwardPlato
Those who know the good should rule, and rulers should be trained for it from youth.
c. 400 BCE