Intelligence
Intelligence is different from wisdom, for even a fool can be intelligent — like one who devises a great plan, then reveals it to those who shouldn’t know about it just to brag.
Intelligence is not how much one knows, but what he does with his knowledge to achieve his goals.
Intelligence is not thinking fast; it is thinking long enough. And it is also a choice — and just like all the choices that are less chosen, it is less chosen because it is hard.
If you think about ideas while you walk, you will feel tired in your head much sooner than in your legs. That’s why most people prefer not to think more — just like they know their goals can be achieved, but they prefer not to put in the effort to achieve them, admittedly or not.