Man masters nature not by force but by understanding. This is why science has succeeded where magic failed: because it has looked for no spell to cast over nature.

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.

Create your own world where you can do what you want for yourself and for others. Those people who live in others' world all the time, remain in the same place from where they had started.

Check thyself before thy wreck thyself.

All the care I would take, all the love that we made.. Now you trying to find somebody to replace what I gave to ya

Then I grew up, and the beauty of succulent illusions fell away from me.

We tell our thoughts, like our children, to put on their hats and coats before they go out.

Short is my date, but deathless my renown.

Politics is not about winning for the sake of winning.

A verbal promise behind closed doors, even a statement written on paper-these could easily evaporate . . . .

It's always great to play parts that are larger than life.

Hoc solum deliqui, quod uiuo. My only fault is that I am alive.