“The only way in which a human being can make some approach to knowing the whole of a subject, is by hearing what can be said about it by persons of every variety of opinion and studying all modes in which it can be looked at by every character of mind. No wise man ever acquired his wisdom in any mode but this; nor is it in the nature of human intellect to become wise in any other manner.”

– John Stuart Mill

“A good leader must be able to help people realize their ignorance without making them feel stupid. This is not easy. One way is to demonstrate that everybody is ignorant, not just the person you’re talking to. Ignorance has to do with how much you know, whereas being dumb is relative to other people. If everybody is ignorant, then no one is dumb… Leaders have the responsibility to learn about their own ignorance and effectively take advantage of others’ knowledge and skills. Strong leaders make use of the community of knowledge by surrounding themselves with people who have deep understanding of specific issues.”

– Steven Sloman & Philip Fernbach