[D]o not depend on the hope of results . . . [Y]ou may have to face the fact that your work will be apparently worthless and even achieve no result at all, if not perhaps results opposite to what you expect. As you get used to this idea, you start more and more to concentrate not on the results, but on the value, the rightness, the truth of the

Yes, you could fail, but we all know what happens when you don’t try—nothing.