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改变是困难的,但对于进步是必要的。
Change is hard, but it is necessary for progress.
The single easiest way to find out how you feel about someone. Say goodbye.
The only way to discover the limits of the possible is to go beyond them into the impossible.
科学中的创造力来自于将别人没想到要联系的想法联系起来。
"The truth is not always beautiful, nor beautiful words the truth."