No morality can be founded on authority, even if the authority were divine.

But if science may be said to be blind without philosophy, it is true also that philosophy is virtually empty without science.

We say that a sentence is factually significant to any given person, if, and only if, he knows how to verify the proposition which it purports to express.

Even logical positivists are capable of love.

Why should you mind being wrong if someone can show you that you are?

I saw a Divine Being. I'm afraid I'm going to have to revise all my various books and opinions.

The ground for taking ignorance to be restrictive of freedom is that it causes people to make choices which they would not have made if they had seen what the realization of their choices involved.

It seems that I have spent my entire life trying to make life more rational and that it was all wasted effort.

No moral system can rest solely on authority.

It appears, then, that ethics, as a branch of knowledge, is nothing more than a department of psychologyand sociology.

While moral rules may be propounded by authority the fact that these were so propounded would not validate them.

I don't claim to know everything, Wally. I only claim that everything can eventually be known.

It's a funny thing about names, how they become a part of someone.

It is proper #netiquette to be conservative in messages you send and liberal in messages you receive. NetworkEtiquette.net

I want medical experiments on animals stopped. They don't do anything, and they don't work.

You get to play with people's little danger zones.

Freedom is not won on the battlefields. The chance for freedom is won there. The final battle is won or lost in our hearts and minds.

Each time you decide to grow again, you realize you're starting at the bottom of another ladder.

The most important lesson I've learned is that the most productive exercises are simple and compound.

Who knows what the future holds? It's all on parenting, one way or another. I don't care what level it is, it comes back to people learning how to deal with people.

Treat your friend as if he will one day be your enemy, and your enemy as if he will one day be your friend