The challenge for April's Friday Philosophy meeting was whether emotions are rational or irrational. We covered a good deal of ground including not only philosophy but psychology and neuroscience too. We looked at whether emotions are necessary for living and decided that we would be robots if we didn't have any! We discussed how far emotion colours our day-to-day decision making and how emotion is based on our judgements and perceptions. May's challenge will be: Is creativity important in life all, and if so, why?