I think I'd like to be remembered as someone who really helped people to have a little humility and realize that we are part of the animal kingdom not separated from it.

Studying chimps, I came to the conclusion that being evil is something that only humans are capable of. A chimp would never plan to pull another's nails out. The chimps' way of aggression is quick and brutal. I compare them to gang attacks.

Farm animals feel pleasure and sadness, excitement and resentment, depression, fear, and pain. They are far more aware and intelligent than we ever imagined...they are individuals in their own right.

Some people say, therefore, that violence and war are inevitable. I say rubbish: Our brains are fully capable of controlling instinctive behavior.

I shouldn't have named the chimps. It wasn't scientific. I didn't know. I knew nothing. And worse sin of all was that I was ascribing to them emotions like happiness, sadness and so forth.

I had never been able to believe that God would give us poor frail humans only one chance at making it -- that we would be assigned to some kind of hell because we failed during one experience of mortal life. ... So the concepts of karma and reincarnation made logical sense to me.

Realize that change - whilst we want it to happen fast - is usually the result of a great deal of work, and often comes as a result of a series of compromises (so long as we do not compromise our values).