Language is not just a tool for communication; it is a way of seeing the world.

Mental activity is always directed toward some end.

The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

The key is to keep improving, keep fighting, keep believing.

——临终时对孔祥熙说，1925年3月

除非我们接受它，否则我们无法改变任何事物。

What we see is not simply given but actively constructed through complex processes.