Knowledge is not a loose leaf notebook of facts.

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 way a crowShook down on meThe dust of snowFrom a hemlock treeHas given my heartA change of moodAnd saved some partOf a day I had rued.

Remind me, " he paused, drawing in a stuttered gasp, "to never piss you off again. Christ, are you secretly a ninja?

you are the mysterious fire at my finger tips

We cannot let the right wing roll back more than thirty years of social progress.

Where young boys plan for what they will achieve and attain, young girls plan for whom they will achieve and attain.

By the end of high school I was not of course an educated man, but I knew how to try to become one

Part of what compels me to write day after day, chapter after chapter, is the discovery process, seeing the characters evolve as I get deeper and deeper into the story.

Well, every movie is an experiment. And the only way you can grow at what you're doing is to take chances. You can't try to stick with what worked last time.

Rigorous teaching schedules combined with mounds of paperwork can lead to burnout.

Power is not happiness. Security and peace are more to be desired than a name at which nations tremble.