Where there are problems, there are profits.

Your courage is there right alongside of your fear.

Now I just want it to end. I’ve always wanted the happy ending, but now I’ll just settle for the ending.

I’ve always felt sorry for Mike Collins, driving all the way to the moon but not allowed out of the car to look around.

Human reason needs only to will more strongly than fate and she is fate.

If you get the landscape right, the characters will step out of it, and they'll be in the right place.

History is the only laboratory we have in which to test the consequences of thought.

I think that my past stands me in good stead in that it does have a certain strength for musicians.

Science is a particular way of thinking about things.

A man who can take anything will find most things unsatisfying. And a man without memories is just a shell.

Writing a book is a way of thinking to me, the only way of thinking that I have found successful.