一个人必须尽力而为，然后平静地接受结果。
A man must strive to do his best, and then accept the consequences with equanimity.
"We are all victims of our own illusions."
The truth is always complicated, and it’s rarely pure.
黄金法则：想要别人怎么对待你，你就要怎么对待别人
机械和节省劳力的装置只有在降低制造成本时才具有价值。