The only limit is the one you set yourself.
唯一的限制是你自己设定的。
人生には、答えのない問いがたくさんある。
2016年:贝索斯致股东信《每天都要像创业的第一天那样》
"We are all our own graveyards I believe; we squat amongst the tombs of the people we were."
没有坏就没有好。所以我接受好坏,继续前进。
"The most exciting aspect of science is the discovery of something new, something that no one has ever seen before."