Before you call your idea a failure

More than a year into starting Airbnb, co-founders Brian Chesky and Joe Gebbia were, respectively, $ 25,000 and $ 10,000 in debt. The website was getting fewer than fifty visits a day

This is one of the many passages and charts I find in books and articles on a daily basis. They span many disciplines, including:

I occasionally add a personal note to them.

The whole collection is available here.