Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying, "I will try again tomorrow."
勇气并不总是咆哮。有时候,勇气是一天结束时那个轻声说"明天我再试一次"的声音。
The best scientists are those who remain students forever.
The psychologist must be a neutral observer.
"The best way to lead is by example."