数学的乐趣在于发现的旅程，而不仅仅是目的地。
成为人类就是变得脆弱。
The modern state is a product of the European experience.
The best investment strategy is one that is based on sound principles and executed with discipline.
I always try to be positive, even in difficult moments.
"Writing is a way to make sense of our place in history."