Charlie Munger praises this 1 trait of Warren Buffett's—without it, 'you won't get very far in life'

Billionaires Charlie Munger and Warren Buffett are a match made in heaven. After working together for more than 40 years, the two still hold plenty of respect and admiration for one another. As vice chairman of Berkshire, Munger says there's one quality of Buffett's that he holds in especially high esteem: His ability to be a lifelong "learning machine."