The trouble with most of the things that people want is that they get them.

A scientist lives with all reality. There is nothing better. To know reality is to accept it, and eventually to love it.

It would be a poor thing to be an atom in a universe without physicists, and physicists are made of atoms. A physicist is an atom's way of knowing about atoms.

The only point of government is to safeguard and foster life.

The only use for an atomic bomb is to keep somebody else from using one. It can give us no protection - only the doubtful satisfaction of retaliation...

A scientist is in a sense a learned small boy. There is something of the scientist in every small boy. Others must outgrow it. Scientists can stay that way all their lives.

As you lecture, you keep watching the faces, and information keeps coming back to you all the time.