This is why the search for is one of the most common queries among undergraduate math majors and autodidacts.
If you are a mathematics student, you have likely heard the whisper across campus or seen the debate on math forums: "If you want to learn abstract algebra, work through Pinter." a book of abstract algebra pinter solutions
Now, open your copy of Pinter. Turn to Chapter 1. Do the first five problems. Get stuck. Look at a single line of a solution. Close it. Fight again. This is why the search for is one