The true power of mathematics is not in its complexity, but in its simplicity and elegance.
数学的真正力量不在于它的复杂性，而在于它的简洁和优雅。
Your self-worth is determined by you. You don't have to depend on someone telling you who you are.
I invent nothing, I rediscover.
学习写作的唯一方法就是写作。