Success and suffering are vitally and organically linked. If you succeed without suffering, it is because someone suffered for you; if you suffer without succeeding, it is in order that someone else may succeed after you.
What I like about sceptics is that in good science you need critics that make you think: 'Crumbs, have I made a mistake here?' If you don't have that continuously, you really are up the creek. The good sceptics have done a good service, but some of the mad ones I think have not done anyone any favours.