Dissent is the mark of freedom, as originality is the mark of independence of mind. … No one can be a scientist … if he does not have independence of observation and of thought.

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.

Many a man has fallen in love with a girl in a light so dim he would not have chosen a suit by it.

My loneliness ain't killing me no more.

Bring into your mind anyone against whom you have a grievance and let it go. Send that person your forgiveness.

Jumping jacks are easier to do than crawling jacks.

Good and evil grow up together and are bound in an equilibrium that cannot be sundered. The most we can do is try to tilt the equilibrium toward the good.

Too many coaches have too big a mouth and not big enough ears.

Artists have the unique ability to tell stories. It's not charts and graphs that get people to change.

I think the major problem in growing up is to become sophisticated without becoming cynical.

Camp life is demanding, and even the simplest daily routine becomes a chore in a climate with 90 per cent humidity, not to mention the bugs.

A rotten case abides no handling.