"If it takes an expert to tell you what it’s worth, it isn’t worth anything."
— Naval Ravikanth
"If it takes an expert to tell you what it’s worth, it isn’t worth anything."
"Learning can feel like progress even when it's not progress"
"Whatever can happen, will happen"
"Entrepreneurship is about risk MANAGEMENT, not merely risk TAKING."
"Every interesting thing I’ve ever done, every important thing I’ve ever done, every beneficial thing I’ve ever done, has been through a cascade of experiments and mistakes and failures."
"Care about the product, not about the outcome."
"The man who does more than he is paid for will soon be paid for more than he does."

In this video, Sam Altman (CEO of OpenAI) talks about "How to Succeed With a Startup". A must-watch for all the founders and those who aspire to be.
In this article, Paul Graham the founder of YCombinator talks about the 5 most interesting startup founders of the last 30 years. An interesting read. The article is dated April 2009 and has aged very well.