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天下都变成了秋天的气象,一个房间难以维持春天的温暖。
The most exciting moments in mathematics are when you realize that two seemingly unrelated areas are deeply connected.
Fearless is not the absence of fear. It's not being completely unafraid. Fearless is having fears. Fearless is having doubts. Lots of them. Fearless is living in spite of those things, every day.
天地和宇宙虽然广阔,但在更大的尺度上也不过是一小部分。