Something else an academic education will do for you. If you go along with it any considerable distance, it will begin to give you an idea what size mind you have. What'll fit and, maybe, what it won't. After a while, you'll have an idea what kind of thoughts your mind should be wearing. For one thing, it may save you an extraordinary amount of time trying on ideas that won't suit you, aren't becoming to you. You'll begin to know your true measurements and dress your mind accordingly.