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Books make great gifts because they have whole worlds inside of them.
书籍是很好的礼物,因为它们里面包含了整个世界。
全球饥饿问题不能仅靠慈善解决,它需要系统性变革。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
我喜欢跨越人们在各个领域之间设置的想象边界——这非常令人耳目一新。
In mathematics, the simplest questions often lead to the most profound discoveries.