Understanding the limits of computation is as important as understanding the capabilities.
 “每逢你想要批评任何人的时候”,他对我说,“你就记住,这个世界上所有的人,并不是个个都有过你拥有的那些优越条件。”
简短的词是最好的,又短又古老的词最最好。
Patience is key in observational astronomy—some discoveries take decades to confirm.