Experience keeps a dear school, but fools will learn in no other.

Immoderate desire is the mark of a child, not a man.

Think globally, act locally.

The greatest of wealth is the richness of the soul.

In anger we should refrain both from speech and action.

Think no vice so small that you may commit it, and no virtue so small that you may over look it.

Respect yourself if you would have others respect you.

The object of the superior man is truth.

You always admire what you really don't understand.

Sometimes you will never know the value of a moment until it becomes a memory.

We are all born ignorant, but one must work hard to remain stupid

Great acts are made up of small deeds.

Where there is anger, there is always pain underneath.

He who conquers others is strong; he who conquers himself is mighty.

We seldom realize, for example that our most private thoughts and emotions are not actually our own. For we think in terms of languages and images which we did not invent, but which were given to us by our society.

Adapt what is useful, reject what is useless, and add what is specifically your own.

What's done can't be undone.

Above all be of single aim; have a legitimate and useful purpose, and devote yourself unreservedly to it.

Things which matter most must never be at the mercy of things which matter least.

Peace is not an absence of war, it is a virtue, a state of mind, a disposition for benevolence, confidence, justice.

A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.