Leucippus of Abdêra

(Greek)

Leucippus of Abdêra was in his prime about 430 B.C.

He was credited with one book, called The Great World-Order; and perhaps a monograph On Mind.

1. (Title of book: The Great World-Order, here attributed to Democritus).

1a. (Restoration of Herculanean Papyrus in which Democritus is accused of plagiarising from The Great World-Order' of Leucippus).

Certain terms of the Atomic Theory can probably be traced to Leucippus, e.g.

Atoms ('uncuttables').

Close-pressed (units).

Great Void.

Absection.

Rhythm (meaning 'form').

Contact (meaning 'arrangement').

Aspect (meaning 'position').

Entanglement.

Eddy.

2. (From a treatise 'On Mind'). Nothing happens at random; everything happens out of reason and by necessity.