We live in an age of unprecedented opportunity: with ambition, drive, and talent, you can rise to the top of your chosen profession regardless of where you started out. But with opportunity comes responsibility. It’s up to you to carve out your place in the world and know when to change course. And it’s up to you to keep yourself engaged and productive during a career that may span some 50 years. In Managing Oneself, Peter Drucker explains how to do it. The keys: Cultivate a deep understanding of yourself by identifying your most valuable strengths and most dangerous weaknesses. Articulate how you learn and work with others and what your most deeply held values are. Describe the type of work environment where you can make the greatest contribution.