Pythagoras

A man is never free until he masters himself.

Rest satisfied with doing well, and leave others to talk of you as they please.

The oldest and shortest words—'yes' and 'no'—are those which require the most thought.

Above all things, reverence yourself.

Silence is better than unmeaning words.

Friends are as companions on a journey, who ought to aid each other to persevere in the road to a happier life.

The most important thing in life is to learn how to give out love, and to let it come in.

The beginning is half of the whole.

Know thyself and thou wilt know the universe and the gods.

Power is the near neighbour of necessity.

Do not look back when you leave.

Do not stir the fire with a sword.

Do not eat the heart.

Do not step over the beam of a balance.

Do not sit on a bushel.

Do not wear a ring.

Do not walk on the highways.

Do not receive swallows into your house.

Do not help a man to take off a burden, but to lay one on.

Do not leave the impress of your foot on the bed.