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有時(shí)候生活中最難的事情是知道該跨過(guò)哪座橋，該燒掉哪座橋。

The rich are different from you and me.

對(duì)這個(gè)世界有所助益是獲得快樂(lè)的唯一途徑。

Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith.