It's been claimed chimpanzees act mainly for their own ends, but in our experiment there was no reward, and they still helped.

It is definitely more surprising that we found this in chimpanzees.

When those two things come together — they obviously do so at 18 months of age and maybe earlier — they are able to help.

It is wrong to expect a reward for your struggles. The reward is the act of struggle itself, not what you win.

Not everyone who wears a beard or is a Muslim is a terrorist. This unspeakable act was one of ignominy which totally ran counter to the principles of Islam.

An act carelessly performed, a broken vow, and hesitating obedience to discipline, all this brings no great reward.