From my close observation of writers... they fall into two groups: 1) those who bleed copiously and visibly at any bad review, and 2) those who bleed copiously and secretly at any bad review.

People who think they know everything are a great annoyance to those of us who do.

Human beings sometimes find a kind of pleasure in nursing painful emotions, in blaming themselves without reason or even against reason.

It has always been my ambition to die in harness with my head face down on a keyboard and my nose caught between two of the keys.

It is not so much that I have confidence in scientists being right, but that I have so much in nonscientists being wrong.

It has been my philosophy of life that difficulties vanish when faced boldly.

Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition.