Pythagoras

Declining from the public ways, walk in unfrequented paths.

We ought so to behave to one another as to avoid making enemies of our friends, and at the same time to make friends of our enemies.

The end of life is to be like God, and the soul following God will be like Him.

It is requisite to defend those who are unjustly accused of having acted injuriously.

The intellect of the universe is God.

Do not destroy or damage a cultivated tree, nor any animal that does not injure men.

One must choose in all things a mean just and good.

Liberty is an equal distribution of rights and privileges.

The purpose of life is the investigation of the Sun, the Moon, and the heavens.

The principles of mathematics are the principles of all things.