Youth is a wonderful thing. What a crime to waste it on children.
Never help a child with a task at which he feels he can succeed.
If we fall, we don't need self-recrimination or blame or anger - we need a reawakening of our intention and a willingness to recommit, to be whole-hearted once again.
The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.
A man can do all things if he but wills them.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I found it!) but 'That's funny ...'
O, it is excellent to have a giant's strength; but it is tyrannous to use it like a giant.