For some reason, people take their cues from price action rather than from values. What doesn't work is when you start doing things that you don't understand or because they worked last week for somebody else. The dumbest reason in the world to buy a stock is because it's going up.
Warren BuffettThe big question about how people behave is whether they've got an Inner Scorecard or an Outer Scorecard. It helps if you can be satisfied with an Inner Scorecard.
Warren BuffettI mean you know at midnight everything is going to turn to pumpkins and mice; right? But if the evening goes along, I mean, you know, the guys look better all the time, the music sounds better, it's more and more fun, you think why the hell should I leave at quarter of 12. I'll leave at two minutes to 12. But the trouble is, there are no clocks on the wall. And everybody thinks they're going to leave at two minutes to 12.
Warren Buffett