《鋼鐵意志》作者威廉．麥克雷文最新作！ From the acclaimed, bestselling author of Make Your Bed—a short, inspirational book of advice and leadership lessons that Admiral McRaven collected over his four decades as a Navy SEAL. The title “Bullfrog” is given to the Navy SEAL who has served the longest on active duty. Admiral McRaven was honored to receive this honor in 2011 when he took charge of the United States Special Operations Command. When McRaven retired in 2014, he had 37 years as a Navy SEAL under his belt, leading men and women at every level of the special operations community. In the ensuing four years, he served as Chancellor to the entire University of Texas System, with its 230,000 students and 100,000 faculty and health care workers.