语言中最危险的短语是：“我们一直都是这么做的。”

The biggest risk is not taking any risk at all.

The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.

过去是一个异国他乡；他们在那里行事不同。

【解释】幸福不可强求，保持愉快的心情，更能感受到幸福；灾祸难以避免，消除怨恨他人的念头，就能远离灾祸。