You can obsess about serving your customers/audience/clients， or you can obsess about beating the competition. Both work， but of the two， obsessing about your customers will take you further.
Uncertainty is not the absence of information, but the presence of too much conflicting information.
不确定性不是信息的缺失，而是过多矛盾信息的存在。
团队合作是成功的基础，没有任何伟大成就是独自完成的。