"..My investment in BlackBerry years ago. It was the first stock that I ever bought, around late 2008. It was a small investment in a company I thought I knew really well. That was the first and last individual stock I owned. That taught me that picking individual stocks wasn’t going to be my strength as an investor. I’m glad that I Iearned that early in my investing life..."

That is quite a mistaken view to take about investing in stocks due to one mistake. Investors, even the best ones make errors all the time and learn from them to do better next time. One error here easily fixed is investing in only one stock. If he had invested in other tech companies besides Blackberry that I`m sure he was familiar with like Apple, Amazon, Google in 2008, to only name a few, I`m sure he`d have a very different opinion on stock investing.