有利于国家、人民的事情就要坚定的实行，有害于国家、人民的事情就要坚定的铲除。

绘画是一种语言，和任何语言一样，它有自己的语法和句法。

统计学家不能逃避理解他所应用或推荐的过程的责任。

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.