You have to be able to accept failure to get better.
The idea is not to have any 90-degree angles. In the beginning, there was the diagonal. The diagonal comes from the idea of the explosion which "re-forms" the space.
经常要坦白地承认一项过失错误,这将使你的上司意料防备不及,才会给你一个机会去犯更多的错误。