That which is apprehended by intelligence and reason is always in the same state; but that which is conceived by opinion with the help of sensation and without reason, is always in a process of becoming and perishing and never really is.

Anything worth knowing is already known and must be remembered and reclaimed by the soul.

The love of the gods belongs to anyone who has given to true virtue and nourished it, and if any human being could become immortal, it would be he.

It is better to be wise, and not to seem so, than to seem wise, and not be so; yet men, for the most part, desire the contrary.

Before all it's necessary to look after the Soul, if you want the head and the rest of the body to function correctly.

The wisdom of men is worth little or nothing.

Geometry existed before creation.