Your job title isn't your identity. The speaker argues that tying your worth to accomplishments is fragile, and suggests viewing life as an infinite game with different stretches rather than one defining achievement.
Chapters
We confuse our identities or our value or our worth with our accomplishments or our job titles. People give their resumes. Politicians give their resumes. They don't tell you what they believe, they tell you what they've accomplished. If your self worth, your value and your identity is wrapped up in a thing you do and that thing goes away, then do you have no value? Like if you're a lawyer and you stop practicing law, who are you? And to understand that along the infinite game, there are places that you will stop to look at the view. There are places that you will have to struggle because it's steep. There are places that are easy. But it's all the journey. And I would never define my journey based on one stop.