The true artist is quite rational as well as imaginative and knows what he is doing; if he does not, his art suffers.
Isaac AsimovOf course there are worlds. Millions of them! Every star you see has worlds, and most of those you don't see.
Isaac AsimovPeople are entirely too disbelieving of coincidence. They are far too ready to dismiss it and to build arcane structures of extremely rickety substance in order to avoid it. I, on the other hand, see coincidence everywhere as an inevitable consequence of the laws of probability, according to which having no unusual coincidence is far more unusual than any coincidence could possibly be.
Isaac Asimov