Sir Bertrand Russell: Wise consideration.

Say what you wish about Russell's beliefs, lack therof, and attitudes, this is the sort of advice from which we all--yes, I mean everyone--could benefit. I find myself wishing more frequently that I had people like this in my life as I was growing up. If you're not familiar with Sir Bertrand's work, be careful about dismissing his words too easily, and be especially careful about quoting Rodney King back at him.

Tip o'the hat to BoingBoing for this one.