It's human nature to keep doing something as long as it's pleasurable and you can succeed at it, which is why the world population continues to double every 40 years.

When even the analysts are bored, it's time to start buying.

You can't see the future through a rearview mirror

The biggest winners are surprises to me, and takeovers are even more surprising. It takes years, not months, to produce big results.

During the Gold Rush, most would-be miners lost money, but people who sold them picks, shovels, tents and blue-jeans (Levi Strauss) made a nice profit.

There's lots of stocks out there and all you need is a few of 'em. That's been my philosophy.

My high-tech aversion caused me to make fun of the typical biotech enterprise: $100 million in cash from selling shares, one hundred Ph.D.'s, 99 microscopes, and zero revenues.