Think of the topic that interests you the most. The topic should be something you have been thinking, studying, practicing in your life and, therefore, have a good deal of clarity on the subject. Identify a few keywords around that topic. Once you are done, take these keywords and head to Google. Type “quote” and your keyword, one at a time. You will see some of the great quotes that will resonate with your thinking. Pick up the one that resonates with you the most. Move away from the internet and return to the document or the word you are using for the exercise. Now think of the viewpoint that is completely opposing to your selected quote. Your challenge is to think of as many points as you can in support of the opposing viewpoint. One condition is you are not supposed to search the internet for the answers, but you need to think and generate them. Finally, write down all the points.

Harrdas, Miliind. Ideas on Demand: A crash course on creativity. Bust creativity blocks, 10x your ideas, and become an idea machine. (10x Impact) (pp. 54-56). Kindle Edition.