It's rare to find a consistently creative or insightful person who is also an angry person. They can't occupy the same space, and if your anger moves in, generosity and creativity often move out. It's difficult to use revenge or animus to fuel great work.
Seth GodinPersistent people are able to visualize the idea of light at the end of the tunnel when others can't see it
Seth GodinIf failure is not an option, neither is success. Innovation is just repeated failure till you come up with something that works.
Seth Godin