Angels are not merely forms of extraterrestrial intelligence. They are forms of extra-cosmic intelligence.

Not to engage in this pursuit of ideas is to live like ants instead of like men.

All genuine learning is active, not passive. It involves the use of the mind, not just the memory. It is a process of discovery, in which the student is the main agent, not the teacher.

Erotic or sexual love can truly be love if it is not selfishly sexual or lustful.

Freedom is the emancipation from the arbitrary rule of other men.

One of the embarrassing problems for the early nineteenth-century champions of the Christian faith was that not one of the first six Presidents of the United States was an orthodox Christian.

More consequences for thought and action follow the affirmation or denial of God than from answering any other basic question.

In the case of good books, the point is not to see how many of them you can get through, but how many can get through to you.

A good book can teach you about the world and about yourself. You learn more than how to read better; you also learn more about life. You become wiser.

To agree without understanding is inane. To disagree without understanding is impudent.

The ultimate end of education is happiness or a good human life, a life enriched by the possession of every kind of good, by the enjoyment of every type of satisfaction.

The beautiful thing about such moments in life is that there is so much clarity. You know what you live for and what matters.

Landing the role of Stephen Hawking was the most positively surprising thing that has happened to me.

I am never happier than when I am on set and getting to act. And I can't wait for what is yet to come.

According to Buddhist scriptures, compassion is the "quivering of the pure heart" when we have allowed ourselves to be touched by the pain of life.

Photography ruins marriages, and I've been married three times - so there's a downside to it as well.

I grew up in a big family. You have to learn to get along with each other... get things done as a family.

Global climate change needs global action now. The alarm bells ought to be ringing in every capital of the world.

I don't know what's going to happen tomorrow and I can't relive yesterday but I live in the moment if I can.

I wrote a few children's books... not on purpose.

I'm incredibly spiritual. There are like tens of thousands of denominations; I don't fit in any one of those denominations comfortably. But I have a very personal relationship with God.