The thing I try to tell people is that the best founders are almost always the ones who have an obsessive, irrational commitment to the problem. Not the ones with the best pitch. The ones who simply cannot stop.
In a world where everything is being rebuilt by software, the question is not whether a given industry will be disrupted. It's when, and by whom.
The market is a very unforgiving teacher. If you're wrong about a major technological shift, you don't get a second chance to invest at the same price.
Raise prices. The number one thing startups should do that they almost never do is raise prices. If you can't raise prices, you don't have a business. You have a hobby with revenue.
There is no such thing as a bad market if you have a great founder. There is such a thing as a great market that kills bad founders faster.