勇氣并不總是咆哮。有時勇氣是一天結(jié)束時那個輕聲說"明天我再試一次"的聲音。
"Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying 'I will try again tomorrow.'"
君子重視自身的努力，而不羨慕那些由天決定的東西。
A physical symbol system has the necessary and sufficient means for general intelligent action.