Whether our work is art or science or the daily work of society, it is only the form in which we explore our experience which is different.

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.

A leader is a person who knows how to act when other people don’t.

The process of grief and loss is as unique as your personal DNA (deoxyribonucleic acid)

He who fights is powerless, but he who loves is power itself.

I would have been very happy just working from job to job, paying my rent one movie at a time. I never wanted to be this famous. I never imagined this life for myself.

My dad's era believed that there was something noble in being a good guy - the kind of guy that lived straight and narrow, told the truth, and stood up for what he believed was right.

There is only a "marginal difference" separating those who are truly successful and those who merely do well.Whether you believe you can do something or not, you are right!

Rock n' roll is very special to me. It's my lifeblood.

Fashion is what others give you, style is what you give yourself

President Obama hasn't been elected by the American people in order to be pleasant to Russia.

The setting sun, and the music at the close, As the last taste of sweets, is sweetest last, Writ in rememberance more than long things past.