Problem solving is a search through a space of possible solutions.
做父亲就是被诅咒着看你的孩子长大。
The beauty of mathematics is that it allows us to abstract away the complexities of the real world and focus on the underlying principles.
Life is like a mirror, if you frown at it, it frowns back; if you smile, it returns the greeting.
对我而言，你只是一个小男孩，和其他成千上万的小男孩没有什么不同。我不需要你。你也不需要我。对你而言，我也和其它成千上万的狐狸并没有差别。
一念的疏忽是错误的开始，一念不能善始善终，便是错误到底。
Being a detective is like being a scientist. You have to notice things other people don’t notice.
