Talkativeness has another plague attached to it, even curiosity; for praters wish to hear much that they may have much to say.

Nothing can produce so great a serenity of life as a mind free from guilt and kept untainted, not only from actions, but purposes that are wicked. By this means the soul will be not only unpolluted but also undisturbed. The fountain will run clear and unsullied.

For the rich men without scruple drew the estate into their own hands, excluding the rightful heirs from their succession; and all the wealth being centred upon the few, the generality were poor and miserable. Honourable pursuits, for which there was no longer leisure, were neglected; the state was filled with sordid business, and with hatred and envy of the rich.

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."

Silence at the proper season is wisdom, and better than any speech.

It is no great wonder if in long process of time, while fortune takes her course hither and thither, numerous coincidences should spontaneously occur. If the number and variety of subjects to be wrought upon be infinite, it is all the more easy for fortune, with such an abundance of material, to effect this similarity of results.

The state of life is most happy where superfluities are not required and necessities are not wanting.