When I read this I think about the PG essay about only being able to keep one thing at the top of your mind at once. There are two dimensions here: "topness" o

When I read this I think about the PG essay about only being able to keep one thing at the top of your mind at once. There are two dimensions here: "topness" of mind and persistence in time. If you can keep something at the top of your mind for a very long time chances are high you will come to insights and conclusions that will separate you from the rest enough to make you a winner. This is only possible if you really love that thing that will occupy your thinking process for years. Thus, love is the key ingredient for success.