Nations in their great ages have not been great in art or science, but in art and science.

It is important that students bring a certain ragamuffin, barefoot irreverence to their studies; they are not here to worship what is known, but to question it.

No science is immune to the infection of politics and the corruption of power.

Ask an impertinent question and you are on the way to the pertinent answer.

Man is unique not because he does science, and his is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind.

Knowledge is an unending adventure at the edge of uncertainty.

The hand is the cutting edge of the mind.

We have to understand that the world can only be grasped by action, not by contemplation. The hand is more important than the eye ... The hand is the cutting edge of the mind.

Man masters nature not by force, but by understanding

Dissent is the mark of freedom.

One aim of physical sciences had been to give an exact picture the material world. One achievement of physics in the twentieth century has been to prove that that aim is unattainable.

Life is a mighty joke that is not meant to be funny.

She has a charm that is incomparable. She has a beautiful heart that flows with love. And she has a sensitive soul that enthralls with magic. She was the spark I had been waiting for all my life.

Excessive religiosity is killing so many religious people knowingly or unknowingly

We tend not to look at the bigger picture of our lives and instead dwell on the small things that irritate us. When we focus on the bigger picture, those small things fade away.

The resistance to a new idea increases by the square of its importance.

I like talking about subjects that aren't funny in the first place and making them funny. So anything down and depressing is something I'll talk about.

Death obsesses me, yes it does. I can't really understand why it doesn't obsess everyone - I think it does really, I'm just a little more out about it.

The problem with architecture is it goes with the territory, because it's an applied art and because you're messing about with people and their environment.

The richest soil, if uncultivated, produces the rankest weeds.

I'll not be changing, but America will.