A theory in its day helps to solve the problems of the day.

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.

The emptiness that fills in when once-the-beloved says, "Who are you?

Property is not the natural and obvious and inevitable concept that most people think it is.

I have been on dialysis in Istanbul, Milan, Indonesia, Manila, London. It's - it's amazing.

What motivates me more than money are God and my family.

Life is for the living. I was a little scared before surgery 'cause of the release you sign that says there's always a very small percent chance that you'll die during the operation.

I think the most important goal I scored in Spain was the first one because people were wary about me coming over to Spain as a player - they thought I was just there to sell shirts.

Art has to be reflective of our society.

I'd like to discover Truth - when I can latch on to something that I think is true.

Humanity is not a church made of stone, in which vault after vault lies open.