In the spirit of better investing and in celebration of the first Worldwide Invest Better Day coming up on Sept. 25, Motley Fool analysts will be answering user- and reader-submitted questions leading up to the big event. "Ask a Fool" anything, and we'll do our best to help you invest better.

When it comes to investing, many people wonder what is the best strategy, technique, or formula for identifying companies that will deliver in the long term. How can you be confident that you're making sound investment decisions?

According to Motley Fool analyst Brenton Flynn, look no further than the"Oracle of Omaha," Warren Buffett, famous for the wisdom and winnings of his investing approach. Buffett's portfolio includes companies such as Coca-Cola(KO -0.12%), Wells Fargo(WFC -0.35%), Wal-Mart(WMT -0.16%), and IBM(IBM -0.98%), all of which he chose based on a few simple principles that truly anyone can learn from and emulate.

See the following video to get started thinking like Buffett!

Click the green button to join the thousands of people celebrating Worldwide Invest Better Day on Sept. 25!