Before I came here I was confused about this subject. Having listened to your lecture I am still confused. But on a higher level.

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

Experimental confirmation of a prediction is merely a measurement. An experiment disproving a prediction is a discovery.

There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.

Never underestimate the joy people derive from hearing something they already know.

I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant and with five I can make him wiggle his trunk.'

It is not good to try to stop knowledge from going forward. Ignorance is never better than knowledge.

[on what characteristics Nobel prize winning physicists had in common] I cannot think of a single one, not even intelligence.

An experiment disproving a prediction is discovery.

Whatever Nature has in store for mankind, unpleasant as it may be, men must accept, for ignorance is never better than knowledge.

Ignorance is never better than knowledge

God's everywhere.So remember when you go to the toilet not to laugh.

Great music is a great remedy for depression, but you have to drink it in with your heart and mind.

Words. Ever since chisel was taken to slate, it has been accepted that words can and do change the world.

A well-trained dog is like religion, it sets the deserving at their ease and is a terror to evildoers.

a woman may be called a wife and mother for most of her life, while a man is called a husband and father only at his funeral.

How do we attack important problems? Pose the right question.

To be honest, my social life is my work. It's quite boring to say, but I meet a lot of people, and we have people from different creative disciplines. I enjoy life right now, and I enjoy work.

Barack Obama and Michelle Obama don't go to Georgetown. The Clintons did, indeed. And the Clintons go out and about in Washington now. They go to neighborhood restaurants.

There's no such thing as a writer's block. If you're having trouble writing, well, pick up the pen and write. No matter what, keep that hand moving. Writing is really a physical activity.

Prior art is as effective as US soldiers in Iraq: They control the ground they stand on, and nothing more. I used to say Vietnam, but, well, you know.