当侦探就像当科学家一样，你必须注意到别人没注意到的事情。
Being a detective is like being a scientist. You have to notice things other people don’t notice.
Disciplining yourself to do what you know is right and important, although difficult, is the highroad to pride, self-esteem, and personal satisfaction.
没有坚强意志品质的人学识智慧也不会通达;不遵守诺言的人行动也不会实现。
学习数学的最好方法就是做数学。