The measure of a man is the way he bears up under misfortune.

Nothing is cheap which is superfluous, for what one does not need, is dear at a penny.

The first man . . . ventured to call food and nourishment the parts that had a little before bellowed and cried, moved and lived. How could his eyes endure the slaughter when throats were slit and hides flayed and limbs torn from limb? How could his nose endure the stench? How was it that the pollution did not turn away his taste, which made contact with the sores of others and sucked juices and serums from mortal wounds?

If we traverse the world, it is possible to find cities without walls, without letters, without kings, without wealth, without coin, without schools and theatres; but a city without a temple, or that practiseth not worship, prayer, and the like, no one ever saw.

Instead of using medicine, better fast today.

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."

Perseverance is more prevailing than violence; and many things which cannot be overcome when they are together, yield themselves up when taken little by little.