Everything important in sci-fi showed up in the magazines first. It's the proving ground for new writers and new ideas.
I just felt all along that if I could get a certain amount of years in the league, have great years and still have my health when I walked away, that would be great.
I know that I have lived because I have felt, and, feeling giving me the knowledge of my existence, I know likewise that I shall exist no more when I shall have ceased to feel.