Problem solving is a search through a space of possible solutions.

一本书是与死者的对话。

If you want to be successful, you have to be willing to make sacrifices.

有志之士珍惜每一年的光阴；贤德之人，珍惜每一天的光阴；而圣人则会珍惜每一寸的光阴。

The power of the press is a great power, but it must be used with great responsibility.

我们生活的目的是快乐。