What is a key principle emphasized by Benjamin Graham, known as the "Father of Value Investing"?

John "Jack" Bogle, founder of The Vanguard Group, is renowned for pioneering which investment approach?

Warren Buffett, the "Oracle of Omaha," emphasizes which crucial aspect of investing?

George Soros, known for his theory of reflexivity, highlights which important factor in financial markets?

Carl Icahn, recognized for his "corporate raider" approach, suggests which investment strategy?