According to Greek mythology, humans were originally created with four arms, four legs and a head with two faces. Fearing their power, Zeus split them into two separate parts, condemning them to spend their lives in search of their other halves.

Great is the issue at stake, greater than appears, whether a man is to be good or bad. And what will any one be profited if, under the influence of money or power, he neglect justice and virtue?

Knowledge of the soul is the only universal truth and the only wisdom - all other knowledge is transient.

Geometry draws the soul towards truth.

Discordance is evil. Harmony is virtue.

The highest form of pure thought is in mathematics.

Man is a two-legged animal without feathers.