How would I have turned out, I sometimes wonder, had I grown up in a house that stifled enterprise by imposing harsh and senseless discipline? Or in … - Jane Goodall

Consider the farmer who sprays his fields with insecticide to kill the bugs that are damaging his crops. He kills thousands of harmless insects as well, including some that actually do good, such as bees that pollinate the flowers and give us honey. Creatures that feed on insects, especially birds, also get sick and die. In the end, because the poisonous chemicals get widely distributed, humans may become sick, too.

And I thought how sad it was that, for all our sophisticated intellect, for all our noble aspirations, our aggressive behavior was not just similar in many ways to that of the chimpanzees – it was even worse. Worse because human beings have the potential to rise above their baser instincts, whereas chimpanzees probably do not.

What you do makes a difference, and you have to decide what kind of difference you want to make.