To me the most interesting thing about man is that he is an animal who practices art and science and in every known society practices both together.

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.

In summer, we grow younger and stay young forever.

Be a loving soul.

And stay, my dearstay...forever, as my quiet song, in my lilac dawn.

Sorry, maybe this is the head injury talking, but … what?

I was more of a Star Wars kid, actually. I always thought Star Trek was a lot of talk, and it felt a little self-important. It was hard for me to get into it.

In every man's heart there is a devil, but we do not know the man as bad until the devil is roused.

We shape ourselves the joy or fear Of which the coming life is made, And fill our Future's atmosphere With sunshine or with shade.

Time seems to slow down for me when I focus on staying in the moment and that helps me maintain a sense of balance.

When your hands leap towards mine, love, what do they bring me in flight?

I believe we need affordable child care. I believe we need flexibility. I believe we need institutional reform and public policy reform.