老师声称代数是完美而自然的、我们应无条件地接受它,而我甚至不能理解什么是数。对我来说数学课完全就是恐怖和折磨。我完全不理解代数,这使我胆怯得不敢问任何问题。
The more you know, the more you can imagine. The more you imagine, the more you can know.
The past is a shadow, always following, but never catching up.
探索计算复杂性是一段进入未知的旅程,每一次发现都会打开新的门。
The great challenge of our time is to build institutions that can manage the complexity of modern societies.