Recursion is the root of computation since it trades description for time.
我越是研究染色體，就越意識到正在發(fā)生的事情是書本上沒有的。
Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful, but most people will die tomorrow night.
數(shù)學證明的優(yōu)雅在于其簡潔和清晰。
"Every city has a sex and an age which have nothing to do with demography."