Anyone may fairly seek his own advantage, but no one has a right to do so at another's expense.

The following passage is one of those cited by Copernicus himself in his preface to De Revolutionibus: "The Syracusan Hicetas, as Theophrastus asserts, holds the view that the heaven, sun, moon, stars, and in short all of the things on high are stationary, and that nothing in the world is in motion except the earth, which by revolving and twisting round its axis with extreme velocity produces all the same results as would be produced if the earth were stationary and the heaven in motion. . . ."

This wine is forty years old. It certainly doesn't show its age.

Quo usque tandem abutere, Catilina, patientia nostra? In heaven's name,Catiline, how long will you abuse ourpatience?

Let every man practise the trade which he best understands.

For just as some women are said to be handsome though without adornment, so this subtle manner of speech, though lacking in artificial graces, delights us.

The most evident difference between man and animals is this: the beast, in as much as it is largely motivated by the senses and with little perception of the past or future, lives only for the present. But man, because he is endowed with reason by which he is able to perceive relationships, sees the causes of things, understands the reciprocal nature of cause and effect, makes analogies, easily surveys the whole course of his life, and makes the necessary preparations for its conduct.