Laughter is a bodily exercise, precious to Health

To write well, express yourself like the common people, but think like a wise man.

We must be neither cowardly nor rash but courageous.

Now the soul of man is divided into two parts, one of which has a rational principle in itself, and the other, not having a rational principle in itself, is able to obey such a principle. And we call a man in any way good because he has the virtues of these two parts.

But the whole vital process of the earth takes place so gradually and in periods of time which are so immense compared with the length of our life, that these changes are not observed, and before their course can be recorded from beginning to end whole nations perish and are destroyed.

If the hammer and the shuttle could move themselves, slavery would be unnecessary.

Praise invariably implies a reference to a higher standard.