By used books. They have the same words as the new ones. Also libraries.
购买旧书，它们的词与新词相同，也可以去图书馆。
死亡不是终点，而是一种状态的改变。
Every journey is a search for the self, even when we think we are running away.
发现可能性的极限的唯一方法就是超越它们进入不可能。
The process of mathematical discovery is not about reaching a destination, but about the journey itself.
有时候，帮助某人的最好方式就是陪伴在他们身边。
大胆梦想，敢于失败。