In individuals， insanity is rare；but in groups， parties， nations， and epochs， it is the rule.
在个体中，疯狂是罕见的；但在团体、党派、国家和时代中，它却是常规。
"The only limit to our realization of tomorrow will be our doubts of today."
朋友相逢欢聚却不饮酒，连洞口的桃花也会笑话。