Every year, on university campuses in the West, a certain festival of ideas is held. Actually more like a bazaar. Students, many of them not having attended any class yet, set up tables and distribute pamphlets. Amid the variety, a common tune can be discerned:
I have an ideal. The world does not resemble my ideal. There is something wrong with the world. The world must change. We must change the world. “We” may not include you, so to change the world I must first change you. If only you could see my ideal as clearly as I do. Read this pamphlet and come to our first meeting tonight. We will change the world, and there will be coffee and donuts.
Each table at this bazaar is peopled by people who share the same vision of the world, and often the same clothing style. Owing to the ideal and/or the clothing style, the kids passing by are selective in what table, if any, they gravitate to. Clothing style is a good candidate explanation for this gravitation, because the pamphlets are handed-out only once you visit a given table, and it seems safe to say, purely by observing the selective walking patterns, that most passers-by have not obtained, much less meticulously compared, all the free literature.
So, it turns out that the part about changing you is not quite accurate, since you and I seem to already be in agreement. Even so, come to our first meeting tonight. We will change the world, and there will be coffee and donuts.