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When most people reach a level of success, they slow down, or they stop completely. Much respect for Tim Cook for refusing to play it safe or get complacent. Apple was worth $349 billion in 2011 when Cook took over, and today it's worth $3 trillion.

Never let the stage fool you. In other words, don't judge people on their public persona. Instead, find the metrics (like EBITDA and growth rate) that actually measure success.

It's okay to feel a certain way when you listen to a speaker. But before you make any decisions about this person, check their track record and see if their actions are consistent with their words.

Who is the only person who knows how big you think?

One clue that you're not thinking big; you attract victims and complainers. A clue that you are thinking big; you don't feel the need to convince anyone about your vision. Your actions speak for themselves.

Live...8 Republican candidates face off in Milwaukee for the first GOP debate on August 23, 2023.

Play the long game. I've been planning for this moment (and much bigger ones to come) for twenty years.

People who offend you. Even better are the ones who insult you. These are the people who show you where you're sensitive and test your leadership.

The next time someone does something to get a reaction from you, disappoint them! Instead of taking the bait, stay unemotional to determine what leadership lesson this situation is trying to teach you.