A crust eaten in peace is better than a banquet partaken in anxiety.

The cure for pain is in the pain.

The more that you read, the more things you will know. The more that you learn, the more places you'll go.

Science may set limits to knowledge, but should not set limits to imagination.

The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.

If you don't know where you're from, you'll have a hard time saying where you're going.

Wisdom... comes not from age, but from education and learning.

Gravity is only the bark of wisdom's tree; but it preserves it

Tomorrow hopes we have learned something from yesterday.

Nothing is as easy as it looks.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

The ultimate authority must always rest with the individual's own reason and critical analysis.

Criticize the act, not the person.

Yesterday is but today's memory and tomorrow is today's dream.

There's no sense in being precise when you don't even know what you're talking about.

Intelligence is the ability to adapt to change.

In the practice of tolerance, one's enemy is the best teacher.

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

Anywhere you go in the world is what you make of it, not what you read in books.

Men are not prisoners of fate, but only prisoners of their own minds.

We sometimes congratulate ourselves at the moment of waking from a troubled dream; it may be so the moment after death.