A society grows great when old men plant trees whose shade they know they shall never sit in.
当老人们种下他们知道自己永远不会坐在其下的树时,社会就会变得伟大。
当我们被爱时,我们都会变得更好。
Safety isn't a department - it's a culture that starts at the very top.
[物理学是]一种良好的思考框架。将事物归结为他们的基本真理,然后从那里推理出来。