Most people are afraid of change，but if you look at it as something you can count on，then it can be a comfort.There's not many things you can really count on.
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
检验统计假设的问题是科学方法整体问题的一个组成部分。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
"To be Irish is to know that in the end the world will break your heart."