理论计算机科学是一个领域，其中深刻的数学见解导致了实用的计算工具。
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
Leadership means making tough decisions today that will benefit generations tomorrow.
The desire to get rich is a natural human instinct, and it's not something to be ashamed of.