The whole of virtue consists in its practice.

That man is guilty of impertinence who considers not the circumstances of time, or engrosses the conversation, or makes himself the subject of his discourse, or pays no regard to the company he is in.

So near is falsehood to truth that a wise man would do well not to trust himself on the narrow edge.

The name of peace is sweet and the thing itself good, but between peace and slavery there is the greatest difference.

We all are imbued with the love of praise.

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. . . ."

Wisdom is not only to be acquired, but enjoyed.