As Warren Buffett’s right-hand man for more than 40 years, and a vice chairman of Buffett’s Berkshire Hathaway, billionaire Charlie Munger has had the kind of career and financial success most people can only dream of. Here is his advice for anyone who wants to rise to the top:

“Don’t sell anything you wouldn’t buy yourself.” Be true to your values. Pick a career not for how much money you can make, but for doing something you believe in and are willing to dedicate your life to.

“Don’t work for anyone you don’t respect and admire.” Be careful about who you choose to work with and for. Seek out people you can look up to and learn from them.

“Work only for people you enjoy.” Your boss and co-workers can be a source of stress or strength. Find an employer whose culture attracts like-minded people who share your values and your commitment to success.