Each problem that I solved became a rule which served afterwards to solve other problems.

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

Those who can not change their minds can not change anything.

Share our similarities, celebrate our differences.

Tomorrow hopes we have learned something from yesterday.

Wisdom begins at the end.

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

Nature is pleased with simplicity. And nature is no dummy

Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact

For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.

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

If you only read the books that everyone else is reading, you can only think what everyone else is thinking.

The impossible could not have happened, therefore the impossible must be possible in spite of appearances.

Knowing yourself is the beginning of all wisdom.

A mistake is always forgivable, rarely excusable and always unacceptable.

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

Most of what matters in our lives takes place in our absence.

You have heard that it was said, 'Eye for eye, and tooth for tooth.' But I tell you, do not resist an evil person. If someone strikes you on the right cheek, turn to him the other also.

Taste every fruit of every tree in the garden at least once. It is an insult to creation not to experience it fully. Temperance is wickedness.

Almost every wise saying has an opposite one, no less wise, to balance it.