Pythagoras of Samos

Mathematics Greek -570 – -495 260 quotes

An ancient Greek philosopher and mathematician, credited with the Pythagorean theorem and the founding of the Pythagorean school.

Most quoted

"Do not allow sleep to close your eyelids, before you have reviewed all your actions of the day. How have I erred? What have I done? What have I left undone? Begin from the first and go through to the last; and then, for the evil acts, chide yourself, and for the good rejoice."

— from The Golden Verses of Pythagoras

"Do not allow sleep to close your eyelids, before you have reviewed all your actions of the day. How have I erred? What have I done? What have I left undone? Begin from the first and go through to the last; and then, for the bad, be vexed, and for the good, be glad."

— from The Golden Verses of Pythagoras

"As long as man continues to be the ruthless destroyer of lower living beings, he will never know health or peace. For as long as men massacre animals, they will kill each other. Indeed, he who sows the seed of murder and pain cannot reap joy and love."

— from Attributed by Ovid, -500

All quotes by Pythagoras of Samos (260)

The wise man should be prepared for everything that does not lie within his control.

Attributed by various sources -500

Man is the measure of all things.

Attributed by various sources (often misattributed to Protagoras, but Pythagorean influence is noted) -500

Know thyself.

Attributed by various sources (a common Greek aphorism, often associated with Pythagorean teachings) -500

Evolution is the law of life, number is the law of the universe, unity is the law of God.

Attributed by various sources -500

The most beautiful of all figures is the sphere, and the most beautiful of all solids is the pyramid.

Attributed by various sources -500

The soul of man is divided into three parts: intelligence, reason, and passion. Intelligence and reason are divine, passion is mortal.

Attributed by various sources -500

Abstain from beans.

Attributed by various sources (a famous, enigmatic Pythagorean precept) -500

Do not stir the fire with a sword.

Attributed by various sources (a symbolic precept) -500

Do not step over the beam of a balance.

Attributed by various sources (a symbolic precept) -500

Do not eat the heart.

Attributed by various sources (a symbolic precept) -500

Do not sit upon a choenix.

Attributed by various sources (a symbolic precept) -500

Do not break the bread.

Attributed by various sources (a symbolic precept) -500

Do not wear a ring.

Attributed by various sources (a symbolic precept) -500

Do not look in a mirror beside a lamp.

Attributed by various sources (a symbolic precept) -500

Do not leave the imprint of a pot in the ashes.

Attributed by various sources (a symbolic precept) -500

Do not receive a swallow into your house.

Attributed by various sources (a symbolic precept) -500

Do not walk in the public ways.

Attributed by various sources (a symbolic precept) -500

Do not wear a tight ring.

Attributed by various sources (a symbolic precept) -500

Do not speak of Pythagorean matters to those who are not Pythagoreans.

Attributed by various sources -500

The square on the hypotenuse of a right triangle is equal to the sum of the squares on the two other sides.

Pythagorean theorem (though formal proof may be later, the concept is attributed) -500

Contemporaries of Pythagoras of Samos

Other Mathematicss born within 50 years of Pythagoras of Samos (-570–-495).