Art is original. Marcel Duchamp was an artist when he pioneered Dadaism and installed a urinal in a museum. The second person to install a urinal was… - Seth Godin

Fear of living without a map is the main reason people are so insistent that we tell them what to do. The reasons are pretty obvious: If it’s someone else’s map, it’s not your fault if it doesn’t work out. If you’ve memorized the sales script I gave you and you don’t make the sale, who’s in trouble now? Not only does the map insulate us from responsibility, but it’s also a social talisman. We can tell our friends and family that we’ve found a good map, a safe map, a map worthy of respect.

Here’s a quote from ultramarathoner Dick Collins: Decide before the race the conditions that will cause you to stop and drop out. You don’t want to be out there saying, “Well gee, my leg hurts, I’m a little dehydrated, I’m sleepy, I’m tired, and it’s cold and windy.” And talk yourself into quitting. If you are making a decision based on how you feel at that moment, you will probably make the wrong decision.

"Everyone will think it's stupid!"
"Everyone says it's impossible."
Guess what? Everyone works in the balloon factory and everyone is wrong.