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釋義：君子在面對挫折、困難的時候，應該反躬自問，修養品德。蹇（jiǎn），多指行動遲緩、困苦、不順利的意思。

There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.

"The only limit to our realization of tomorrow will be our doubts of today."

有時候音符之間的沉默和音符本身一樣重要。

將你受到的傷害變成智慧。

Recursion is the root of computation since it trades description for time.

"世界是一座監獄，而監獄是一場夢。"