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使用，而不要濫用...節制和過度都不會使人快樂。

Tell your heart that the fear of suffering is worse than the suffering itself. And that no heart has ever suffered when it goes in search of its dreams, because every second of the search is a second's encounter with God and with eternity.

The most successful teams are those where everyone feels valued and empowered to contribute.

在數學中，提出問題的藝術必須比解決問題更有價值。