I had rather men should ask why my statue is not set up, than why it is.

The measure of a man's life is the well spending of it, and not the length.

Prosperity is no just scale; adversity is the only balance to weigh friends.

Those who aim at great deeds must also suffer greatly.

Education and study, and the favors of the muses, confer no greater benefit on those that seek them than these humanizing and civilizing lessons, which teach our natural qualities to submit to the limitations prescribed by reason, and to avoid the wildness of extremes.

They are wrong who think that politics is like an ocean voyage or a military campaign, something to be done with some particular end in view, something which leaves off as soon as that end is reached. It is not a public chore, to be got over with. It is a way of life. It is the life of a domesticated political and social creature who is born with a love for public life, with a desire for honor, with a feeling for his fellows; and it lasts as long as need be.

This excerpt is presented as reproduced by Copernicus in the preface to De Revolutionibus: "Some think that the earth remains at rest. But Philolaus the Pythagorean believes that, like the sun and moon, it revolves around the fire in an oblique circle. Heraclides of Pontus and Ecphantus the Pythagorean make the earth move, not in a progressive motion, but like a wheel in rotation from west to east around its own center."