I do not understand what the man who is happy wants in order to be happier.

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

Rather leave the crime of the guilty unpunished than condemn the innocent.

Sed nescio quo modo nihil tam absurde dici potest quod non dicatur ab aliquo philosphorum. (There is nothing so absurd but some philosopher has said it.)

Vicious habits are so odious and degrading that they transform the individual who practices them into an incarnate demon.

So you see, old age is really not so bad. May you come to know the condition!

Not only is there an art in knowing a thing, but also a certain art in teaching it.