Language learning deserves special mention. It is, bar none, the best thing you can do to hone clear thinking.

The way that you become world-class is... by asking good questions.

Everything that works in sales has been done already. Just keep track of the crap that you buy, or the awesome stuff that you buy, and decide what was the trigger, and then just sell to people like you. It's really that easy - and that's what I do.

When you try to do something big its hard to fail completely.

I'm not a fan of idleness, except in small doses.

I discourage passive skepticism, which is the armchair variety where people sit back and criticize without ever subjecting their theories or themselves to real field testing.

Poisonous people do not deserve your time. To think otherwise is masochistic.