If we do not lay out ourselves in the service of mankind whom should we serve?

You always admire what you really don't understand.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

Men build too many walls and not enough bridges.

Proverbs are short sentences drawn from long experience.

Nothing is more intolerable than to have to admit to yourself your own errors.

A proverb is much matter distilled into few words.

What you're thinking is what you're becoming.

Colorless green ideas sleep furiously

All imperfection is easier to tolerate if served up in small doses.

Without courage, wisdom bears no fruit.

A house is not a home unless it contains food and fire for the mind as well as the body.

Respect yourself if you would have others respect you.

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

Be frank and explicit. That is the right line to take when you wish to conceal your own mind and to confuse the minds of others.

Whatever you think the world is withholding from you, you are withholding from the world.

There are no eternal facts, as there are no absolute truths.

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

The simple things are also the most extraordinary things, and only the wise can see them.

To a wise and good man the whole earth is his fatherland.

One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.