"Every word is a choice, and every choice is a sacrifice."
每一个词都是选择，而每一个选择都是牺牲。
Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.
The truth is, art requires of its practitioners not talent alone, but a certain kind of temperament.
言论不能改变行动而又崇尚它，那就是说空话。
Loneliness is not a lack of company, but a lack of purpose.