Unum Group: "No, it's got some liabilities that I don't want. ... I want you to stay away from them There's some hidden risk there."

Cerus Corp.: "We had them on. I got a lot of queries about them after. I think it's a good company and a very smart CEO. I'm there for that one."

Alibaba: "What we care about, frankly, is that they are doing incredibly well ... We have our disputes, but there are companies in China that are doing very well with American-style financials and Alibaba is one of them."

Yandex: "You're 17 and I'm not going to discourage anything that you want to do ... because I need you to learn. So, I'm going to say that's fine. I have other ideas. I have them in my charitable trust ... but a 17-year-old is interested in he's done some homework on that is OK with me."

Caterpillar: "Caterpillar needs a very fast — it needs an infrastructure bill and it needs an acceleration of our economy. It's very well run now. It's not going to be like the old days, where it goes back to $60-70, but I just wish that there was more to hang your hat on."

Sunrun: "You know it better than I do. I have not done enough work on Sunrun and one of the reasons why is because I say if you want a solar, you buy Tesla."

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