译文：任凭尘世白日里忙碌得像火一样炽热，我却像云朵飘荡，无忧无虑。

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.

"Your time is limited, don't waste it living someone else's life."

科学的进步不是一条直线，而是一个螺旋，总是在前进，又总是回到起点。