Everything we hear is an opinion, not a fact. Everything we see is a perspective, not the truth.

There are things known and there are things unknown, and in between are the doors of perception.

Judge a man by his questions rather than by his answers.

Promises are like crying babies in a theater, they should be carried out at once.

It is not titles that honor men, but men that honor titles.

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.

Let there be spaces in your togetherness.

Attachment is the great fabricator of illusions; reality can be attained only by someone who is detached.

A single lie destroys a whole reputation of integrity.

Those who know, do. Those that understand, teach.

By three methods we may learn wisdom: first, by reflection which is noblest; second, by imitation, which is the easiest; and third, by experience, which is the bitterest.

Never ruin an apology with an excuse.

Empty pockets never held anyone back. Only empty heads and empty hearts can do that.

Act as if the maxim of your action were to become through your will a general natural law

Beer: The cause of, and solution to, all of life's problems.

A perfection of means, and confusion of aims, seems to be our main problem.

Judge not unless you judge yourself.

It is not enough to have a good mind; the main thing is to use it well.

If you place your head in a lion's mouth, then you cannot complain one day if he happens to bite it off.

Circumstances do not make a man, they reveal him.

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