Before God we are all equally wise - and equally foolish.
Common sense is the collection of prejudices acquired by age
eighteen.
God may be subtle, but He isn't plain mean.
I know not with what weapons World War III will be fought, but
World War IV will be fought with sticks and stones.
It is impossible to both prevent and prepare for war.
Man usually avoids attributing cleverness to somebody else --
unless it is an enemy.
Only two things are infinite, the universe and human
stupidity, and I'm not sure about the former.
Peace cannot be kept by force. It can only be achieved by
understanding.
Small is the number of them that see with their own eyes, and
feel with their own hearts.
The release of atom power has changed everything except our
way of thinking. The solution to this problem lies in the heart of
mankind. If only I had known, I should have become a watchmaker.
There are only two ways to live your life. One is as though
nothing is a miracle. The other is as though everything is a
miracle.
[When asked to describe radio] "You see, wire telegraph is a kind
of a very, very long cat. You pull his tail in New York and his
head is meowing in Los Angeles. Do you understand this? And radio
operates exactly the same way: you send signals here, they receive
them there. The only difference is that there is no cat."
Where the world ceases to be the scene of our personal hopes
and wishes, where we face it as free beings, admiring, asking and
observing, there we enter the realm of Art and Science.