He doesn't know true love and he doesn't know secrets.

他既不明白爱情，也不知晓秘密。

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I don't know true love had an expiration date.

我不知道真爱还有过期的时候。

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Those days I know true love, also began to like the plain boiled water.

那些天我知道了真正的爱情，也开始喜欢上了白开水。

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For those who suffered mostly misery in this life, who died as infants or young children, who never really had an opportunity to know true joy or love, the afterlife offered a second chance and a way to address the unfairness of this life.

BBC: A Point of View: Would you want to live forever?

And what I know is true about President Bush, and I hope my successor will say about me, is that we love this country and we do our best.

WHITEHOUSE: President Obama Speaks at the Dedication of the George W. Bush Presidential Library | The White House