To be modern is to be in constant dialogue with tradition.

The only way to do great work is to love what you do.

There is no point treating a depressed person as though she were just feeling sad, saying, 'There now, hang on, you'll get over it.' Sadness is more or less like a head cold- with patience, it passes. Depression is like cancer.

近似算法证明了在实现实际解决方案中妥协的力量。