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每一本書都是通往另一個世界的門。

The man who lets a leader prescribe his course is a wreck being towed to the scrap heap.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

你不必完美才值得被愛。

在化學中，就像在生活中一樣，有時你需要退后一步才能看到更大的圖景。