The hardest thing to understand in the world is the income tax.
Quotes by Albert Einstein
The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives.
You cannot simultaneously prepare for and prevent war.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
Everything should be made as simple as possible -- but no simpler!
If only I had known, I would have been a locksmith.
As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.