more from René Descartes

Single Idea 3635

[catalogued under 23. Ethics / F. Existentialism / 5. Existence-Essence]

Full Idea

According to the laws of true logic, we must never ask about the existence of anything until we first understand its essence.

Gist of Idea

Essence must be known before we discuss existence

Source

René Descartes (Reply to First Objections [1641], 108)

Book Reference

Descartes,René: 'Meditations on First Philosophy etc.', ed/tr. Cottingham,John [CUP 1986], p.88