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Every material has its own intelligence.

快樂是最高的善，我們追求快樂，避免痛苦。

Art is a battle.

你唯一應(yīng)該努力超越的人是昨天的自己。

Every tree we plant today is an investment in a greener, healthier tomorrow.

The danger is not that we will be deprived of speech， but that we will have nothing worth saying.