There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know.

-- Donald Rumsfeld 唐纳德·拉姆斯菲尔德

有已知的已知。这些事情我们都知道，我们都知道。有已知的未知。也就是说，有些事情我们知道我们不知道。但也有未知的未知。有些事情我们不知道，我们不知道。

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Know Say

相关名言

Weakness on both sides is, as we know, the motto of all quarrels.

我们知道，双方的弱点是所有争吵的座右铭。

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For too long, actually, we have either said you're this or that.

太久了，事实上，我们不是说你是这个就是那个。

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There isn't much to say. I haven't been at all deedy.

没什么好说的。我一点也不堕落。

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I know nothing about letting go.

我对放手一无所知。

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