The events of this century should remind us that the hopes of mankind almost always prove illusory, and that we have only a limited ability to devise permanent and equitable solutions to problems which spring from human nature. Violence, shortage amid plenty, tyranny and the cruelty it breeds, the gross stupidities of the powerful, the indifference of the well-to-do, the divisions of the intelligent and well-meaning, the apathy of the wretched multitude – these things will be with us to the end of the race.
Hence civilization will always be at risk, and every age is prudent to regard the threats to it with unique seriousness. All good societies breed enemies whose combined hostility can prove fatal.
~ Paul Johnson