One of the most difficult things for a writer in this business to accept is the uncertain fate of one's work.

We think we know what we are doing. We have always thought so.

Exercise invigorates the body and sharpens the mind.

The rock, for its part, is not even aware of our existence because we are alive for only a brief instant of its lifespan. To it, we are like flashes in the dark.

Sometimes I think man needs to feel a special position within nature, and this leads him to believe that he is either specially hated by other animals or specially cherished. Instead of the truth, which is that he's just another animal on the plain. A smart one, but just another animal.

There is always a cause for fear. The cause may change over time, but the fear is always with us.

Do you want to understand how to swim, or do you want to jump in and start swimming? Only people who are afraid of the water want to understand it. Other people jump in and get wet.