It's awful to have a depression, but it's a great thing to have a depression mentality because it means that we are not speculating, we are not living beyond our means, we don't quit our job to take a big risk because we know we might not get another job. There is something stable about a country, a society built on those values.

Things that have never happened before are bound to occur with some regularity. You must always be prepared for the unexpected, including sudden, sharp downward swings in markets and the economy. Whatever adverse scenario you can contemplate, reality can be far worse.

Depressions aren't good but the depression mentality is good.

Excess capacity in people, machines, or property will be quickly absorbed.

In a world in which most investors appear interested in figuring out how to make money every second and chase the idea du jour, there's also something validating about the message that it's okay to do nothing and wait for opportunities to present themselves or to pay off. That's lonely and contrary a lot of the time, but reminding yourself that that's what it takes is quite helpful.

If you are predisposed to be patient, disciplined and psychologically appreciate the idea of buying bargains, then you're likely to be good at it. If you have a need for action, if you want to be involved in the new and exciting technological breakthroughs of our time, that's great, but you're not a value investor, and you shouldn't be one.

Do not suffer interim losses, relish and appreciate them