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

A scientist should be the happiest of men.

Civilization will end within 15 or 30 years unless immediate action is taken against problems facing mankind.

I think if a physician wrote on a death certificate that old age was the cause of death, he'd be thrown out of the union. There is always some final event, some failure of an organ, some last attack of pneumonia, that finishes off a life. No one dies of old age.

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

We are the products of editing, rather than of authorship.

Nuclear weapons offer us nothing but a balance of terror, and a balance of terror is still terror.