The important thing is not to stop questioning. Curiosity has its own reason.

I never think of the future. It comes soon enough.

Life is like riding a bicycle. To keep your balance you must keep moving.

Imagination is more important than knowledge. Knowledge is limited.

There's a horrible stereotype of both the romance writer and the romance reader as somehow undereducated and unprofessional, when in fact there are a number of incredibly well-educated professional women who have chosen to leave their other careers and go into writing romance.

All the mathematical sciences are founded on relations between physical laws and laws of numbers, so that the aim of exact science is to reduce the problems of nature to the determination of quantities by operations with numbers.

I think the decision to make substances like steroids from plants, rather than from animal tissues, was a landmark in the history of medicine as well as the history of chemistry.

Our culture loves movies and TV, which is wonderful, but there's something a little bit passive sometimes about watching, because you're looking at other people's imagination at work.