你不必完美，做你自己就好。
You don’t have to be perfect. Just be yourself.
职位越高，错误的代价越大。
Safety must always be the top priority in mining operations.
The best stories are those that challenge the status quo.
The more constraints one imposes, the more one frees oneself.
要将一个国家从最低级的野蛮状态带到最高度的富裕，所需的几乎只有和平、低税收和较为合理的司法管理。
I never cut class. I loved getting A’s, I liked being smart. I liked being on time. I thought being smart is cooler than anything in the world.
