The brain is a world consisting of a number of unexplored continents and great stretches of unknown territory.

Every man if he so desires becomes sculptor of his own brain.

The worst part is not in making a mistake but in trying to justify it, instead of using it as a heaven-sent warning of our mindlessness or our ignorance.

In summary, all great work is the fruit of patience and perseverance, combined with tenacious concentration on a subject over a period of months or years.

Unfortunately, nature seems unaware of our intellectual need for convenience and unity, and very often takes delight in complication and diversity.

There are no small problems. Problems that appear small are large problems that are not understood

It is idle to dispute with old men. Their opinions, like their cranial sutures, are ossified.

In adult centers the nerve paths are something fixed, ended, immutable. Everything may die, nothing may be regenerated.

That which enters the mind through reason can be corrected. That which is admitted through faith, hardly ever.

To know the brain...is equivalent to ascertaining the material course of thought and will, to discovering the intimate history of life in its perpetual duel with external forces.

Nothing inspires more reverence and awe in me than an old man who knows how to change his mind.

Sometimes the only way to keep love, is to let it go.

For I am you and you are I.

There is one type of ideal woman very seldom described in poetry - the old maid, the woman whom sorrow or misfortune prevents from fulfilling her natural destiny.

Eating a slice of white bread is like eating pure sugar.

Vowing, even intense vowing, is often useless. The next day comes and the next day goes. What works is making a vivid, concrete plan.

My alphabet starts with this letter called yuzz. It s the letter I use to spell yuzz a ma tuzz. You ll be sort of surprised what there is to be found once you go beyond Z and start poking around

Tolerance is the positive and cordial effort to understand another's beliefs, practices, and habits without necessarily sharing or accepting them.

Thank God the economy is not as bad as you read in the newspaper every day.

You're hot for two seconds, and you're struggling to get work again. If it were easy, I don't think that's a good place for an artist to work from.

I consider the modernization of the Middle East the central challenge of our time. This region behaves as if it were disturbed, if you'll excuse the clinical expression.