In these xenophobic times, when politicians are stoking everyone's anxiety about threats from abroad, I would argue that engaging with the rest of the world is not only a luxury, in the way that travel is, but actually a moral responsibility.

If someone says: "I don't want to have a cochlear implant, because I want my child to grow up with a rich sense of deaf culture," he must acknowledge that the deaf culture that exists in the world today has a different scale than the deaf culture that's likely to exist in the world 50 years from now.

It's deeply humbling to realize that there is no such thing as a society with a purchase on truth.

The opposite of depression is not happiness, but vitality, and it was vitality that seemed to seep out of me.

People who believe that they are going to be excommunicated and shamed, or whatever other dark things may happen to them, are much less likely to enter open, loving relationships. And they are also much less likely to have the self-esteem that is required to be monogamous and loving. And in consequence, they are much less likely to create families.

I think morality is more important than ever before. As we gain more power, the question of what we do with it becomes more and more crucial, and we are very close to really having divine powers of creation and destruction. The future of the entire ecological system and the future of the whole of life is really now in our hands. And what to do with it is an ethical question and also a scientific question.

One has to weigh all of one's values always in relative terms. On the upside, you get people who are not acting on their homosexual attraction, who are avoiding the sin of practicing homosexuality. On the downside, you have destroyed marriages, traumatized children, and dead people who have taken their own lives.