文学是文字的艺术，而文字是思想的工具。
"La literatura es el arte de la palabra, y la palabra es el instrumento del pensamiento."
The key to trading success is to have a clear understanding of risk and reward.
The essence of cryptography is to allow communication in the presence of adversaries.
我认为不断学习和成长是很重要的。
In mathematics, you don't understand things. You just get used to them.