A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
“When you start becoming really successful, the demons start to tempt you - the demons of vanity and self importance, drug abuse, the feelings of fraudulence. But, it's also a thrill. That's what I found weird.”
“Never boss people around. It's more important to click with people than to click the shutter.”