"The world is full of magic things, patiently waiting for our senses to grow sharper."

The value of a mental process is in its survival utility.

勇气是能站起来侃侃而谈。勇气也是能坐下来静静倾听。

有人自认为在做有用的事，却收效甚微；有人看似在做“无用”之功却流芳后世，引为大用。