You only need to know the direction, not the destination. The direction is enough to make the next choice. - James Clear

Everything is an oversimplification. Reality is messy and complex.

The question is whether it is a useful simplification.

Know the limitations of an idea and you can apply it to great effect—despite the messiness of reality.

True behavior change is identity change. You might start a habit because of motivation, but the only reason you’ll stick with one is that it becomes part of your identity.

If you haven't started, then taking action is more important than finding a better strategy.

If you're already taking action, then ensuring you're working on the right thing is more important than working harder.

Your effort sets your floor. Your strategy sets your ceiling.