Out, out, brief candle! Life's but a walking shadow, a poor player That struts and frets his hour upon the stage And then is heard no more. It is a tale Told by an idiot, full of sound and fury, Signifying nothing, 

Learning consists in the modification of certain mediating processes which operate between the stimulus and the response.

"Through literature, we can explore the infinite possibilities of human experience."

Don't be embarrassed by your failures, learn from them and start again.

工作中的快乐使工作完美。