How does one find out what is the best and the worst? A good yardstick is to compare two things, people, places, objects, ideas and any other matters with each other. Comparing two things is the best way to find out the similarities and dissimilarities, the good and the bad, the high and the low between them. Of course, the comparison must be logical or else it will become a fallacy. Read the famous contrast/similarity quotations and sayings to find out how you can use comparison to get the best deal.