They replied, "Let one of us sit at your right and the other at your left in your glory."
"You don't know what you are asking," Jesus said. "Can you drink the cup I drink or be baptized with the baptism I am baptized with?" (Matthew 10:37-38)
The thing about ambition is that we must always calculate carefully whether we are able to handle the pressures that go with the job.
Do you really want to be an entrepreneur, an actor, a boss, a salesman, etc? It isn't a bed of roses. That's what Jesus said. Do we know what we are asking for?
So when we think about what we want to do, do not just consider the rewards but also the price to pay.