Quest2ReasonClimb the mountain, sharpen your mind.

Ideas

Big questions

Pick a question and see how the schools answer it, one line each.

Which picture of reality do you actually trust?

16 schools answer this. See every school

The physical world is a copy of something more real and more stable.

c. 400 BCE

Reality is what we can observe, sorted by what each thing is for.

c. 340 BCE

Samkhya

Kapila (by tradition), Ishvarakrishna

Consciousness and nature are two different kinds of thing, and mixing them up is the mistake.

text c. 350 CE

Vedanta

The 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. CE

Daoism

Laozi, Zhuangzi

Reality is a way things already move. Forcing a pattern onto it is the error.

c. 400 BCE
Show 11 more schools

Phenomenology

Husserl, Heidegger, Merleau-Ponty

Start from experience as it is lived, before the theory explains it away.

1900 onward

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. CE

Falsafa

Al-Kindi, Al-Farabi, Ibn Sina

That a thing exists is not the same fact as what it is.

c. 1020 CE

Reality keeps changing shape, and our categories are lenses, not the thing itself.

c. 300 BCE

Madhyamaka

Nagarjuna, Chandrakirti

Nothing has a nature of its own. Things are real by depending on other things.

c. 150 CE

The Presocratics

Heraclitus, Parmenides, Zeno and the early atomists

Look for the one stuff or law beneath all change: water, fire or unchanging being.

c. 500 BCE

Neoplatonism

Plotinus, Porphyry and Proclus

Everything flows from a single source, the One, and the soul can climb back toward it.

c. 250 CE

The Kyoto School

Nishida Kitaro, Tanabe Hajime and Nishitani Keiji

Beneath subject and object lies a field of nothingness in which all things arise.

1911 onward

Hegelian dialectic

G. W. F. Hegel, after Kant, Fichte and Schelling

Reality is a whole that develops through conflict and comes to know itself in history.

1807 onward

Buddhism

Siddhartha Gautama

Nothing is permanent and there is no fixed self; things arise from causes and pass away.

c. 5th c. BCE

Epicureanism

Epicurus

Everything is atoms moving in empty space, the soul included, so death is nothing to fear.

c. 307 BCE