The study of mathematics is the indispensable basis for all intellectual and spiritual progress.

A company's culture is defined by the actions of its leaders.

Every family is a haunted house in its own way.

译文：天上的风云变化无常，不可预测，人间的事情难以估量，大多互相抵触。赏析：很多事情很难得到别人的认同和理解，只要我们问心无愧，行得正，不一定要在乎别人的言辞和态度。