当你的朋友看到你因仰望天空而大笑时，一定会感到莫名其妙！到时候，你可以对他们说：“是的，星星总让我开心而笑！”
And your friends will be properly astonished to see you laughing as you look up at the sky! Then you will say to them, "Yes, the stars always make me laugh!"
A man of genius makes no mistakes. His errors are volitional and are the portals of discovery.
你想用卖糖水来度过余生，还是想要一个机会来改变世界？
The power of causal reasoning is that it allows us to predict the effects of actions we have never taken.