In a video posted on LinkedIn, Buffett said,

If you can't communicate, it's like winking at a girl in the dark--nothing happens. You can have all the brainpower in the world, but you have to be able to transmit it. And the transmission is communication.

He added that investing in developing your communication skills -- both in writing and in-person -- "can increase your value by at least 50 percent."

The Oracle of Omaha also once said:

We look for three things when we hire people. We look for intelligence, we look for initiative or energy, and we look for integrity. And if you don't have the latter, the first two will kill you.

Tony Simons in The Integrity Dividend argues for integrity as the predominant characteristic that "touches every aspect of your business." When practiced in its best form, says Simons, integrity enhances the value of the business and drives profitability.