If principles can become dated, they're not principles.

In one way, I'm sympathetic to the institutional reluctance to face the music. I'd give a lot to mark my weight to 'model' rather than to 'market.'

You can't produce a baby in one month by getting nine women pregnant.

If you don’t feel comfortable making a rough estimate of the asset’s future earnings, just forget it and move on. No one has the ability to evaluate every investment possibility. But omniscience isn’t necessary; you only need to understand the actions you undertake.

One’s objective should be to get it right, get it quick, get it out and get it over. Your problem won’t improve with age.

The most important quality for an investor is temperament, not intellect. You need a temperament that neither derives great pleasure from being with the crowd or against the crowd.

SUPPOSE that an investor you admire and trust comes to you with an investment idea. This is a good one, he says enthusiastically. I'm in it, and I think you should be, too.