It is a mistake to imagine that potentially great men are rare. It is the conditions that permit the promise of greatness to be fulfilled that are rare. What is so difficult to achieve is the cultural background that permits potential greatness to be converted into actual greatness.
Fred HoyleOnce a photograph of the Earth, taken from outside, is available, once the sheer isolation of the Earth becomes known, a new idea as powerful as any in history will be let loose.
Fred HoyleWhen I was young, the old regarded me as an outrageous young fellow, and now that I'm old the young regard me as an outrageous old fellow.
Fred Hoyle