If penicillin had been judged by its toxicity to guinea pigs, it might never have been used by man.

Bush sees the evil as out there in the wider world, residing in people who 'hate freedom'. Look at his immediate response to the pictures of prisoner abuse; this is not what Americans do, these are not our values.

If you have the abilities to earn a lot of money and if you have the character to persist in giving that to the most effective charities you can find, then that may be the best thing that you can do. And - also, if you do become a Wall Street banker, I think you need to be aware of what you're doing in terms of your daily work, not just earning money to give a lot away. But you need to think about - am I harming people through the work that I'm doing?

Business ethics has always had problems that are distinct from those of other professions, such as medicine, law, engineering, dentistry, or nursing.

All the arguments to prove man's superiority cannot shatter this hard fact: in suffering, the animals are our equals.

Christianity is our foe. If animal rights is to succeed, we must destroy the Judeo-Christian religious tradition.

People tend to care about dogs because they generally have more experience with dogs as companions; but other animals are as capable of suffering as dogs are. Few people feel sympathy for rats. Yet rats are intelligent animals, and there can be no doubt that rats are capable of suffering and do suffer from countless painful experiments performed on them. If the army were to stop experiments on dogs and switch to rats instead, we should not be any less concerned.