"The only way to make sense out of change is to plunge into it, move with it, and join the dance."

"To be able to choose between the two, and to choose the better, is one of the highest privileges of man."

"The surest way to work up a crusade in favor of some good cause is to find a bad name for its opponents."

"The human mind is a device for measuring the universe."

"The perfect dictatorship would have the appearance of a democracy, but would in fact be a prison without walls in which the prisoners would not even dream of escaping. It would be a system of slavery …"