King and Warren BuffettBillionaire investor Warren Buffett holds a Korean traditional crown, which is a present from employees of TaeguTec, during a meeting with employees in Daegu, about 300 km (189 miles) southeast of Seoul, October 25, 2007.REUTERS/Jo Yong-Hak

Warren Buffett is one of the most successful investors in history. “The Oracle of Omaha” has an estimated net worth of nearly $77 billion, making him the fourth-richest person in the world.

From drinking Coke for breakfast to carrying around an old-school flip phone, Buffett has always done things his way.

On the occasion of his 88th birthday on August 30, we compiled a few of his best quotes to take you inside his head.