If one looks with a cold eye at the mess man has made of his history, it is difficult to avoid the conclusion that he has been afflicted by some built-in mental disorder which drives him towards self-destruction. Murder within the species on an individual or collective scale is a phenomenon unknown in the whole animal kingdom, except for man, and a few varieties of ants and rats.
Arthur KoestlerCreativity is a type of learning process where the teacher and pupil are located in the same individual.
Arthur KoestlerTo sell oneself for thirty pieces of silver is an honest transaction; but to sell oneself to one s own conscience is to abandon mankind.
Arthur KoestlerLaughter and weeping, the Greek masks of comedy and tragedy, mark the extremes of a continuous spectrum; both provide channels for the overflow of emotion; both are
Arthur Koestler