That is the essence of science: ask an impertinent question, and you are on the way to a pertinent answer.
Man masters nature not by force but by understanding. This is why science has succeeded where magic failed: because it has looked for no spell to cast over nature.
No science is immune to the infection of politics and the corruption of power.
The most wonderful discovery made by scientists is science itself.
Man is unique not because he does science, and his is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind.
Science has nothing to be ashamed of even in the ruins of Nagasaki. The shame is theirs who appeal to other values than the human imaginative values which science has evolved.
Knowledge is an unending adventure at the edge of uncertainty.