The greater part of our best years has been passed for our generation in these two great worldconvulsions. All will be changed after this war, which spends in one month more than nations earned before in yearsthere is no more security in our time than in those of the Reformation or the fall of Rome.

Every wave, regardless of how high and forceful it crests, must eventually collapse within itself.

The world has always needed human beings who refuse to believe that history is nothing but a dull, monstrous selfrepetition, a selfperpetuating, meaningless game, only varied in outer garb, who cannot be converted from their conviction that history signifies progress in morality, that our race is ascending on an invisible ladder from an animal nature towards divinity, from brutal violence to the wisely ordering intellect, and that the ultimate stage of complete understanding is already close at hand, indeed has almost been attained.

Freedom is not possible without authority - otherwise it would turn into chaos and authority is not possible without freedom - otherwise it would turn into tyranny.

Again and again, faith in a possible satisfaction of the human race breaks through at the very moments of most zealous discord because humankind will never be able to live and work without this consoling delusion of its ascent into morality, without this dream of final and ultimate accord.

Being sent to bed is a terrible command to all children, because it means the most public possible humiliation in front of adults, the confession that they bear the stigma of childhood, of being small and having a child's need for sleep.

But don't despise error. When touched by genius, when led by chance, the most superior truth can come into being from even the most foolish error. The important inventions which have been brought about in every realm of science from false hypotheses number in the hundreds, indeed in the thousands.