Intellectuals solve problems, geniuses prevent them.
I am not only a pacifist but a militant pacifist. I am willing to fight for peace. Nothing will end war unless the people themselves refuse to go to war.
The significant problems we face cannot be solved at the same level of thinking we were at when we created them.
Nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.