Read a newspaper from a different country every day
I was recently asked to give some advice to a high school student. Normally when I asked for advice, people want a ticker. But this was different. This was supposed to be profound.
After hemming and hawing on it for a while and balancing potential profundity with the probability that the advice could actually be followed (a high school student is probably not in a position to sail around the world, for example), I came up with the following: Read a newspaper from a different country every day.
At the end of the day being a good person and a good investor is about perspective, and I've found that varying my sources of information has been invaluable in providing that. Even better, newspapers (and English versions) are easy to get your hands on these days, so whether it's China's People's Daily, the Jakarta Post, the Irish Times, Le Monde, or whatever, check out what's making news every day in another country.