An armed society is a polite society. Manners are good when one may have to back up his acts with his life.

Sin lies only in hurting other people unnecessarily. All other sins are invented nonsense. (Hurting yourself is not sinful - just stupid)

The difference between science and the fuzzy subjects is that science requires reasoning while those other subjects merely require scholarship.

Progress is made by lazy men looking for easier ways to do things

Don't ever become a pessimist, Ira; a pessimist is correct oftener than an optimist, but an optimist has more fun--and neither can stop the march of events.

Never insult anyone by accident

The supreme irony of life is that hardly anyone gets out of it alive

Anyone who clings to the historically untrue -- and -- thoroughly immoral doctrine that violence never solves anything I would advise to conjure up the ghosts of Napoleon Bonaparte and the Duke of Wellington and let them debate it. The ghost of Hitler would referee. Violence, naked force, has settled more issues in history than has any other factor; and the contrary opinion is wishful thinking at its worst. Breeds that forget this basic truth have always paid for it with their lives and their freedoms

I am free because I know that I alone am morally responsible for everything I do

You can have peace. Or you can have freedom. Don't ever count on having both at once