It's encouragement (or lack of) that's so important to our wellbeing. We all need encouragement, don’t we? And that’s partly why we enjoy working as with luck we get praise and thanks, hopefully from our employer or clients as well as by way of the pay cheque. But I was thinking about Vincent Van Gogh just now and remembered how at art college I was dismayed to learn about so many other artists who are also revered today but despite being talented, suffered from chronic or re