Most of us know what we should change. We should sleep better. Move more. Drink enough water. Spend less time scrolling. Protect our attention. Be grateful. Breathe. Make better choices. The strange thing is that knowing all of this does not necessarily make us do any of it. That gap between knowing and doing is where Theresa Cheung's Walk Your Talk begins. Her argument is simple: lasting personal change depends less on what we intend to do and more on what we repeatedly do.