Spending waiting moments doing crossword puzzles or reading a book you brought yourself.

People who work crossword puzzles know that if they stop making progress, they should put the puzzle down for a while.

Be able to recognize when you're reading or hearing material biased to your own side.

Be able to sneeze without sounding ridiculous. That means neither stifling yourself or spraying your immediate vicinity.

I think one of the problems [with raising intelligent children in modern society] is compulsory schooling...and that children are sitting there, and they are taught and told what to believe; they are passive from the very beginning – and one must be very, very aggressive intellectually to have a high IQ [...] the child is taught. Right from the beginning, it's a passive process. He or she sits there, and they simply try to believe everything they're told?

Make a habit of canceling every subscription to anything you don't have time to read.