Part of the public horror of sexual irregularity so-called is due to the fact that everyone knows himself essentially guilty.

I was asked to memorise what I did not understand; and, my memory being so good, it refused to be insulted in that manner.

The joy of life consists in the exercise of one's energies, continual growth, constant change, the enjoyment of every new experience. To stop means simply to die. The eternal mistake of mankind is to set up an attainable ideal.

Indubitably, magic is one of the subtlest and most difficult of the sciences and arts. There is more opportunity for errors of comprehension, judgment and practice than in any other branch of physics.

The general public still thinks that science fiction has nothing to do with their day-to-day lives.

Educated guesswork’ is what science is. You form hypotheses, test them against the evidence, and if they fit the evidence, you can assume you’ve got close to the truth."

Who are we?' And to me that's the essential question that's always been in science fiction. A lot of science fiction stories are - at their very best - evocations of that question. When we look up at the night sky and wonder, 'Is there anyone else out there?' we're also asking who we are we in relation to them.

During a movie, chemistry is so important, and yet they just assume actors can fake their way through it. That doesn't always work.