The largest single step in the ascent of man is the change from nomad to village agriculture.
Einstein was a man who could ask immensely simple questions. And what his work showed is that when the answers are simple too, then you can hear God thinking.
Revolutions are not made by fate but by men.
Certainty ends inquiry.
Man masters nature not by force, but by understanding
The most powerful drive in the ascent of man is his pleasure in his own skill. He loves to do what he does well. And having done it well, he loves to do it better.