Stephen Covey
The late Stephen Covey was an acclaimed author, advisor, and lecturer. His work teaches us how to become more effective in our personal and professional life. The 7 Habits of Highly Effective People (1989), which has sold over 20 million copies, is his most famous work. But his work isn't just about mastering the art of productivity. It's about self-mastery. Stephen believed in the Character Ethic, where what we do and say is in harmony with who we are. He authored several other bestsellers, two of which include First Things First (1994), and The 8th Habit (2004). In 1996, Time magazine named him one of the 25 most influential people.