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The role of the writer is to be a witness, to give voice to those who cannot speak for themselves.

譯文：擁有的時候，常常要想到沒有的日子，不要等到沒有的日子，才想起擁有的日子。賞析：不管做任何事，人都要有居安思危，防患于未然的意識。

Positive emotions are not trivial luxuries, but instead may be critical necessities for optimal functioning.

One should always play fairly when one has the winning cards.