The secret source of humor is not joy, Mark Twain said, but sorrow.

马克•吐温(Mark Twain)曾说过，幽默的秘诀不是欢乐，而是悲伤。

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As Mark Twain said, “If you tell the truth you don’t have to remember anything.”

像马克·吐温说过的”你不用记忆就可以说真话“。

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Mark Twain said, 'I have been through some terrible things in my life, some of which actually happened.'

土温说过：“我经历过生活中一些可怕的事情，有些的确发生过。”

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But knowing that trust has become precious and the ability to deliver it, as Mark Twain once said, is like the difference between lightning and a lightning bug.

FORBES: The of Power Of Trust

But of course we turn to the godfather, Mark Twain, who has said a couple of wonderful things about fathers.

NPR: The Funny Side of Fatherhood

But there's another thing that's closer to the mark of the American take on dad that Twain said.

NPR: The Funny Side of Fatherhood