Mastering the art of leadership takes time, dedication, and a willingness to fail, and we all need some inspiration from time to time.

Here are some valuable leadership lessons from seven of today’s top CEOs.

1. FOCUS ON PEOPLE, STRATEGY, AND EXECUTION "If you get those three right, the world is a great place," Apple CEO Tim Cook said in a 2013 talk at his alma mater.

Image: Photo: via IBM