Every problem in mathematics has a solution; you just have to find the right path.

史记

Education is one of the most powerful tools we have for reducing inequality and promoting social mobility.

Design should solve problems, not create new ones.

The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.

文学的衰落表明一个民族的衰落。这两者走下坡路的时候是齐头并进的。