After years of finding mathematics easy, I finally reached integral calculus and came up against a barrier. I realized that this was as far as I could go, and to this day I have never successfully gone beyond it in any but the most superficial way.
Isaac AsimovNaturally, there's got to be a limit for I don't expect to live forever, but I do intend to hang on as long as possible.
Isaac AsimovYou can prove anything you want by coldly logical reason---if you pick the proper postulates.
Isaac AsimovAll normal life, Peter, consciously or otherwise, resent domination. If the domination is by an inferior, or by a supposed inferior, the resentment becomes stronger.
Isaac AsimovI made up my mind long ago to follow one cardinal rule in all my writing — to be clear.
Isaac AsimovThe Three Theorems of Psychohistorical Quantitivity: The population under scrutiny is oblivious to the existence of the science of Psychohistory. The time periods dealt with are in the region of 3 generations. The population must be in the billions (±75 billions) for a statistical probability to have a psychohistorical validity.
Isaac Asimov