The book Think: Why You Should Question Everything, written by Guy P. Harrison, discusses the importance of becoming a skeptic. Harrison defines skepticism as “Science in action… the scientific process modified and customized for everyone to use in their everyday lives.” (p. 26) He urges his readers that it is of great importance and in their best interests for people to think critically. Thinking educates individuals on how to navigate through the brain's standard deceptive processes, which tend to interfere with how individuals perceive (see, hear, think, remember, and believe) the world around them. Questioning everything will help promote a smarter and safer world. He views skepticism as a "positive, constructive and optimistic" lifestyle and can be practiced by anyone. Harrison argues that the scientific method is the only antidote to nonsense and misunderstanding, helping to reject bad ideas and promote reality. Guy P. Harrison summarizes that skepticism is “the invaluable defensive weapon you want and need every day of your life. ” (Page 52) When individuals investigate theories thoroughly: by asking questions, doing some research, gathering evidence, and requesting credentials from their source, they are less likely to fall into the pit of false ideas. Those who choose otherwise by not using the scientific method and tend to believe everything they hear are often inclined to take advantage. There are many dishonest people in the world, willing to deceive others and take their money. Furthermore, these types of people are likely to waste time and money and potentially put their lives at risk. Thanks to science, we now know that our brain can easily deceive us and misinterpret the truth, in many different… to keep the brain functioning and healthy. (p. 183) Finally, the book discusses the fact that many people believe that holding a belief or a certain set of beliefs is necessary to find the meaning of life and/or the key to experiencing excitement and joy. However, skeptics universally prove this belief to be false by leading full and rewarding lives. Harrison describes science by saying, “It is an endless process of exploration, discovery, and imagination. New information and ideas are always coming, new questions are always being generated. (p. 207) It is our job to prepare our brains to accommodate new information. Furthermore, it is our duty to accept all parts of human history, the good and the bad. We should view these experiences as opportunities for growth in knowledge and wisdom.