“We must not say every mistake is a foolish one.”

Nothing stands out so conspicuously, or remains so firmly fixed in the memory, as something which you have blundered.

Books: our unfailing companions.

To be rather than to seem.

Endless money forms the sinews of war.

Love is the attempt to form a friendship inspired by beauty.

Cultivation of the mind is as necessary as food to the body.

The enemy is within the gates; it is with our own luxury, our own folly, our own criminality that we have to contend.

The causes of events are ever more interesting than the events themselves.

In all matters, before beginning, a diligent preparation should be made.

To make a mistake is only human; to persist in a mistake is idiotic.

The authority of those who teach is often an obstacle to those who want to learn.

We are bound by the law, so that we may be free.

Instead let Virtue herself, by her own unaided allurements, summon you to a glory that is genuine and real.

A man of faith is also full of courage.

The life of the dead is set in the memory of the living.

Every man can tell how many goats or sheep he possesses, but not how many friends.

For a successful technology, reality must take precedence over public relations, for nature cannot be fooled.

The first principle is that you must not fool yourself and you are the easiest person to fool.

McCarthy fooled as many as he did because a lot of people shared his anxieties.

Science is a way of trying not to fool yourself. The principle is that you must not fool yourself, and you are the easiest person to fool.

Sometimes you have to listen to fools, they may have a point.

I don’t know whether you are a saint or a fool said my lawyer. I replied Is there a difference?

It is foolish to tear one’s hair in grief, as though sorrow would be made less by baldness.

The cleverest of all, in my opinion, is the man who calls himself a fool at least once a month.