A scientist is never certain. ... We absolutely must leave room for doubt or there is no progress and there is no learning.

If you think you understand quantum mechanics, you don't understand quantum mechanics.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

If you can't explain something to a first year student, then you haven't really understood .

God was invented to explain mystery. God is always invented to explain those things that you do not understand.

Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.

My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous reason and you'd just spoil it to know it.

Religion is a culture of faith; science is a culture of doubt.

The only way to deep happiness is to do something you love to the best of your ability

Einstein was a giant. His head was in the clouds, but his feet were on the ground. But those of us who are not that tall have to choose!

Happiness is a mystery in the minds of many because they keep expecting to attain it from experiences that create pleasures.

You start to get nervous when the value of a comic book or graphic novel is relative to the achievements of some other medium.

I need fiction like you need to eat or exercise.

Life is tough, and it's really tough when you're stupid.

Should have dogs before they have kids. Everybody.

If you follow your bliss...the life that you ought to be living is the one you are living.

There is real comfort in being quiet.

Radio... force-feeds us music... everywhere and all the time... sewage-water music in which music is dying.

In your very nature, in the depth of your mind, there is omnipresence, omnipotence, omniscience. All knowledge is already in the depth of your consciousness, of your mind.

We can be bitter about our handicaps or we can be happy about our blessings.