出自北齐·颜之推《颜氏家训·勉学篇》。秉，持、拿。犹，还。贤乎，胜于。少年时代就好学，就像是早上初升的太阳之光；老来才知道虚心向学，就像是拿着蜡烛走在暗夜中。尽管如此，还是比闭着眼睛什么也看不到要强多了。意在鼓励人们时刻不忘学习上进，如果错过学习的最佳时机，努力追补，仍然是精神可嘉的表现。

"The past is never dead. It's not even past."

Swim upstream. Go the other way. Ignore the conventional wisdom. If everybody else is doing it one way, there's a good chance you can find your niche by going in exactly the opposite direction.

The past is a map, showing us where we have been.

Success in business comes from understanding the customer better than anyone else.