The birth of science was the death of superstition.
The greatest difficulties of man begin when he can do what he wants.
Facts do not cease to exist just because they are ignored.
Imagination is generous and selfless; intelligence calculates and clings to whatever it can.
Along with being right, in this world, it's best to be clear and definitively wrong.
It is a fact that man has to control science and occasionally check the progress of technology.
Society differs from nature in that it pursues a defined moral purpose.
The outcomes of political changes are rarely what their friends expect or their enemies fear.