45
05 Dec 11 at 1 am

Wayne Weiten, Psychology Themes and Variations 

"For the most part researchers have paid more attention to negative emotions than positive ones. Why have positive emotions been neglected? …there appear to be fewer positive emotions than negative ones."

 28
25 Sep 11 at 1 am

B.F. Skinner

"Organisms tend to repeat responses that lead to positive outcomes, and they tend not to repeat responses that lead to neutral or negative outcomes."