Books can be your best friends or your worst enemies. As best friends, they entertain us with thrilling stories that can vicariously excite us or help us see the world through the eyes of a different person. They can also inform or educate us on a variety of topics so that we can make informed decisions and understand the world around us a little bit better.
But they can also be vile enemies full of deceit and misinformation, which, if believed and acted on, will bring pain and destruction into our lives and the lives of others. In my opinion, the writings of Charles Darwin fall into this category as they have laid the foundation for the promotion of evil, which has shipwrecked millions of lives to date and threatens to destroy Western Civilization. Also, there are fiction books which play to our sinful nature and inspire both evil thoughts and actions.
So, choose your books wisely. They can either build and enrich your life or destroy it. The ultimate standard of Truth by which all things should be and will be judged is the Word of God, the Bible.