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I don't think you should ever have to apologize for your excitement. Just because something's cliché doesn't mean it's not awesome.
我认为你永远不必为自己的热情道歉。仅仅因为某些事情是老生常谈,并不意味着它不棒。
A good mathematician is always ready to generalize.
When life seems hard, the courageous do not lie down and accept defeat; instead, they are all the more determined to struggle for better future.