检验统计假设的问题由来已久，其起源已不可考。
A sad thing in life is when you meet someone who means a lot to you only to find out in the end that it was never meant to be and you just have to let go.
The task of philosophy is not to resolve contradictions but to make them visible.
艺术家的职责是通过可见的事物揭示不可见的东西。
"Art is the highest form of hope."