There is nothing either good or bad, but thinking makes it so.
其实世事并无好坏，全看你们如何去想。
我曾把许多东西握在手中，但都失去了；但无论我把什么放在上帝的手中，我仍然拥有它。
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。
The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes.... Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.
The mind is very much influenced by its previous impressions.