Earlier this week, Bill Gross continued his streak of bold statements. This time, he claimed he was looking in the mirror and questioning if he should be considered a great investor. Gross is famous for his colorful commentary, but the bond king even went so far as to question the aptitude of greats like Warren Buffett.

In this video, Motley Fool financials analyst David Hanson reminds investors that they can still be successful investors if certain principles are followed -- and discusses why Mr. Gross may be way off base. 

David Hanson has no position in any stocks mentioned. The Motley Fool recommends Berkshire Hathaway. The Motley Fool owns shares of Berkshire Hathaway. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.