"There is not any memory with less satisfaction than the memory of some temptation we resisted."
James Branch Cabell
Colorni believed that doubt was creative because it allowed for alternative ways to see the world, and seeing alternatives could steer people out of intractable circles and self-feeding despondency. Doubt, in fact, could motivate: freedom from ideological constraints opened up political strategies, and accepting the limits of what one could know liberated agents from their dependence on the belief that one had to know everything before acting, that conviction was a precondition for action.
Malcolm Gladwell