There is not a discovery in science, however revolutionary, however sparkling with insight, that does not arise out of what went before.
Isaac AsimovNo one can possibly have lived through the Great Depression without being scarred by it. No amount of experience since the depression can convince someone who has lived through it that the world is safe economically.
Isaac AsimovWhenever I have endured or accomplished some difficult task -- such as watching television, going out socially or sleeping -- I always look forward to rewarding myself with the small pleasure of getting back to my typewriter and writing something.
Isaac Asimov