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幸福不是現成的東西。它來自于你自己的行動。

正該來時，先生（老子）應時來到這世間；正該去時，先生順時離開這世間。安于時勢，順應自然規律，哀樂就不能進入心中。

I decided, very early on, just to accept life unconditionally; I never expected it to do anything special for me, yet I seemed to accomplish far more than I had ever hoped. Most of the time it just happened to me without my ever seeking it.

有時候，沉默比語言更有力量。

The world is full of magic things, patiently waiting for our senses to grow sharper.

物理系統的對稱性反映在其能級的簡并性上。

子貢問怎樣實現仁，孔子說：“工人要做好工，必先磨好工具。生活在那里，就要追隨那里的品德高尚的領導，結交那里的仁義之士。”

釋義：經歷長久干旱后遇上甘霖的喜悅，比在異鄉遇到老朋友還讓人高興。