Thoughts are Things by Prentice Mulford

While the book talks about many aspects of the power of thought that will be familiar to today's readers, he also covers some topics you don't hear discussed as much today. One of my favorite chapters is the one on cultivating courage. He notes that courage and presence of mind mean the same thing; and cowardice and lack of mental control mean about the same thing. He notes that courage comes from discipline regarding so-called little or trivial things. It means focusing on whatever you're doing at the moment, rather than allowing your thoughts to scatter in many directions. This focus allows you to have the presence of mind to do what needs to be done, rather than to panic.