“The only rules are the ones dictated by the laws of physics. Everything else is a recommendation.” - Elon Musk

“There is a positive side to thinking longer-term. It's not just that you have to resign yourself to everything taking longer than it should. If you work patiently it's less stressful, and you can do better work." — Paul Graham

“If you know too much before the start, then you will get overwhelmed. Come up with an original idea, and don’t copy because there will be no passion. You need that otherworldly passion. Just start.” - Jack Ma, Alibaba founder

"In my experience as CEO, I found that the most important decisions tested my courage far more than my intelligence." - Ben Horowitz

"The very best startup ideas tend to have three things in common: they’re something the founders themselves want, that they themselves can build, and that few others realize are worth doing." – Paul Graham

“There are no shortcuts around quality, and quality starts with people.” — Steve Jobs

"You get many chances so long as you keep trying. If you get hung up on failure, and if you think you don't have another chance, that's when you really don't." – Peter Thiel

"All intelligent people should think primarily in terms of opportunity cost. When deciding whether to do something compare it with the best opportunity you have." - Charlie Munger

"The best entrepreneurs know this: Every great business is built around a secret that's hidden from the outside." — Peter Thiel

Mark Zuckerberg's life lesson to middle-school students: 1. Love yourself. Only then can you truly serve others. 2. Focus on what you can control. For those things, never give up.