唯一的真正幸福来自于为一个目标挥霍自己。
The only true happiness comes from squandering ourselves for a purpose.
The charm of mystery novels lies in the fact that they are not just about solving puzzles, but also about exploring human nature.
释义：看到已经发生的事情要谨慎对待将要发生的事情，厌恶某种行为轨迹的人必须避开它。害怕危险的人才能平安，害怕灭亡的人才能生存。这是对谨慎行事、防患未然的智慧的强调。