James Norman Mattis is a retired United States Marine general and former government official who served as the 26th United States Secretary of Defense from January 2017 through January 2019. A retired United States Marine Corps general, Mattis served in the Persian Gulf War, the War in Afghanistan, and the Iraq War.
I would continuously search for new ideas. I read every book and magazine I could. Heck, 3 bucks for a magazine, 20 bucks for a book. One good idea that led to a customer or solution and it paid for itself many times over.