What would you do if you knew for sure that no one would ever find out?

It is good to act as if. It is even better to grow to the point where it is no longer an act.

Men's arguments often prove nothing but their wishes.

He that abuses his own profession will not patiently bear with any one else who does so. And this is one of our most subtle operations of self-love. For when we abuse our own profession, we tacitly except ourselves; but when another abuses it, we are far from being certain that this is the case.

When we are in the company of sensible men, we ought to be doubly cautious of talking too much, lest we lose two good things, their good opinion and our own improvement; for what we have to say we know, but what they have to say we know not.

The society of dead authors has this advantage over that of the living: they never flatter us to our faces, nor slander us behind our backs, nor intrude upon our privacy, nor quit their shelves until we take them down.

In answering an opponent, arrange your ideas, but not your words.