有两种类型的公司,一种是为提高价格而工作的公司,一种是为降低价格而工作的公司,我们将成为第二种。 
让孩子笑的最好方法就是像对待大人一样对待他们。
Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.
The essence of computational complexity is to understand the limits of what can be computed efficiently.