“It was obvious that bigotry was never a one-way operation, that hatred bred hatred!”
Source: Pebble in the Sky
“It was obvious that bigotry was never a one-way operation, that hatred bred hatred!”
Source: Pebble in the Sky
Part I, The Psychohistorians, section 6
Source: The Foundation series (1951–1993), Foundation (1951)
Source: Foundation and Empire
“People who don't expect justice don't have to suffer disappointment.”
Source: The Robots of Dawn
“There is nothing so eternally adhesive as the memory of power.”
“The Evitable Conflict”, p. 189
Source: I, Robot (1950)
“A fire eater must eat fire even if he has to kindle it himself.”
Source: The Foundation series (1951–1993), Foundation (1951), Part III, The Mayors, section 9
"How Easy to See the Future", Natural History magazine (April 1975);
General sources