I am not sincere, even when I say I am not.
The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.
I feel about airplanes the way I feel about diets. It seems to me they are wonderful things for other people to go on.
We learn something every day, and lots of times it's that what we learned the day before was wrong.
There is only one thing a philosopher can be relied upon to do, and that is to contradict other philosophers.
None are so busy as the fool and knave.
That would be a good thing for them to cut on my tombstone: Wherever she went, including here, it was against her better judgment.