I don't want to sell credit to people who are going to hurt themselves with it. You should only sell products that are good for the people who use them. Some disagree with this, but I know I'm right. That is to say, you're talking to a Republican who admires Elizabeth Warren.

A lot of share-buying, not bargain-seeking, is designed to prop stock prices up. Thirty to 40 years ago, it was very profitable to look at companies that were aggressively buying their own shares. They were motivated simply to buy below what it was worth.

Some people seem to think there's no trouble just because it hasn't happened yet. If you jump out the window at the 42nd floor and you're still doing fine as you pass the 27th floor, that doesn't mean you don't have a serious problem. I would want to address the problem right now.

Size will hurt returns. Look at Berkshire Hathaway - the last five things Warren has done have generated returns that are splendid by historical standards, but now give him $100 billion in assets and measure outcomes across all of it, it doesn't look so good. We can only buy big positions, and the only time we can get big positions is during a horrible period of decline or stasis. That really doesn't happen very often.

A lot of opportunities in life tend to last a short while, due to some temporary inefficiency... For each of us, really good investment opportunities aren't going to come along too often and won't last too long, so you've got to be ready to act and have a prepared mind.

Is anyone really surprised that Warren, who is the ultimate embodiment of concentrated decision-making power, picked somebody [Bill and Melinda Gates] who he thinks is like him in many important ways? It was a noble and sensible decision.

Expect hogs to eat a lot more in the presence of a lot of hog wash.