" The expressionist view is that our talents, our gifts, and perhaps our upbringing, and thus "our whole personality", determine what we do. The result is good or bad, according to whether or not we are gifted and interesting personalities.
In opposition to this I suggest that everything depends upon the give-and-take between ourselves and our task, our work, our problems, our world 3; upon the repercussions upon us of this world; upon the feedback, which can be amplified by our criticism of what we've done. It's through the attempt to see objectively the work we have done -that's to see it critically- and to do it better, through the interaction between our actions and their objective results, that we can transcend our talents, and ourselves.
As with our children, so with our theories, and ultimately with all the work we do: our products become independent of their makers. We may gain more knowledge from our children or from our theories than we ever imparted to them. This is how we can lift ourselves out of the morass of our ignorance; and we can all contribute to world 3.
If I am right in my conjecture that we grow, and become ourselves, only in interaction with world 3, then the fact that we can all contribute to this world, if only a little, can give comfort to everyone; and especially to one who feels that in struggling with ideas he has found more happiness than he could ever deserve. "

― Karl Popper , Unended Quest: An Intellectual Autobiography