Ronen Pessar

“People who start at the top never understand what they missed at the bottom. The guy who started by sorting the mail, or cleaning the restaurant late at night, or fixing the equipment at the gym, that’s the guy who knows how things get done. After he’s eventually worked his way up through the ranks, he knows how everything works, why it works, what to do when it stops working. That’s the guy who will have longevity and value and impact, because he knows what it took to get to the top. You can’t claim you ran a marathon if you started at the seventeenth mile.”
― Tim S. Grover, Relentless: From Good to Great to Unstoppable