On progress: "If you're competitor-focused， you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering."
所有的痛苦都是痛苦。
The most durable thing in writing is style, and style is the most valuable investment a writer can make with his time.
Mathematics teaches us to think logically and creatively at the same time.
计算机是一种表达媒介，就像小提琴或画笔一样。
Risk more than others think is safe. Dream more than others think is practical.