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当我唱歌时,我感觉自己置身于一个不同的世界,在那里其他一切都不重要。
The beauty of a mathematical proof lies in its simplicity and inevitability.
It is much easier to change how you think by changing your behavior, than it is to change your behavior by changing how you think. Act out the change you seek.
The power of abstraction is that it allows us to ignore details that are not relevant to the task at hand.