"A rising tide lifts all boats," says Ken Langone, one of the co-founders of Home Depot as he makes his case for capitalism being the being the best economic model. He co-founded The Home Depot with his friends Arthur Blank, Bernard Marcus, Pat Farrah, and Ron Brill back in 1978, and today it's a multibillion-dollar company. And while he agrees that capitalism has its downsides, he says that he can point to 3,000 people who started out with an entry-level position at a Home Depot that rose through the ranks and are now millionaires. Read more at BigThink.com.