If you meddle in other people's marriages you may lose a friend, but acquire his wife.
Problem solving is the central activity of intelligent systems.
賞析：指出靈巧的人和聰明的人往往會因為自己的才能而勞累和憂慮，而沒有才能的人則沒有太多的追求和煩惱。
貪婪的欲望會帶來痛苦，舍棄貪欲才能獲得真正的快樂。
The most successful investors are those who can remain calm during market turbulence.