The only way to achieve your goals is to work hard and never give up.

Happiness is not something you postpone for the future; it is something you design for the present.

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.

即使没人相信你，也要相信自己。