"When I wrote The Road Less Travelled, I never gave a definition of maturity, but I did describe in the book a number of immature people. It seems to me that what most characterizes immature people is that they sit around complaining that life does not meet their demands. On the other hand, what characterizes those relative few who are fully mature is that they see life as their responsibility — even as an opportunity to meet its demands. Indeed, when we realize that everything that happens to us has been designed to teach us what we need to know on our journey of life, we begin to see life from a totally different perspective."