This is more fleshed out in the book "Die with Zero" which may be a bit too extreme.

But in general you have three things to spend in your life: time, money, and effort.

You don't want to spend all your time saving money because you'll run out of time eventually, but you also don't want to spend all your money saving time because you'll run out of money.

It's all about balance and thoughtfully understanding what you actually want and how to get it.