There is no absolute knowledge. And those who claim it, whether they are scientists or dogmatists, open the door to tragedy.

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.

You are like seven of the strangest women I have ever met.

Life is but a light of love.

Happiness never lays its finger on its pulse.

Liberals want the government to get bigger, and they want you to drive smaller cars, and they want to dictate the way you live.

I think we're infinite beings. We have to stay limitless.

Our family is a circle of strength and love...Our family with ever birth and every union the circle grows, our family is a circle of strength every crisis faced together makes the circle stronger.

Oh, Fortuna, you capricious sprite!

Priorities lie in your actions

I've been able to do things that allow me to hold my head up and still be popular.

I dream of eagles and bring forth sparrows.