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Learning from failure is more valuable than celebrating success.

真相不在光明中，而在陰影里。

Virtue! a fig! 'tis in ourselves that we are thus or thus. Our bodies are our gardens, to the which our wills are gardeners.

道理明白了，文辭就能表達清楚；文辭表達清楚了，道理也就明白了。