Man through his essence is a dual being of Good and Evil that are a part of manasasasas self that he can never chase away from him, because if he tries to chase away Evil to keep only Good, Man becomes an alien to himself, transforming the Good he leans to into the biggest and most evident Evil as possible, that of self determining as a being dehumanized by its own being.
We learn through experience and experiencing, and no one teaches anyone anything. This is as true for the infant moving from kicking to crawling to walking as it is for the scientist with his equations. If the environment permits it, anyone can learn whatever he chooses to learn and if the individual permits it, the environment will teach him everything it has to teach.
The power to guess the unseen from the seen, to trace the implications of things, to judge the whole piece by the pattern, the condition of feeling life in general so completely that you are well on your way to knowing any particular corner of it --this cluster of gifts may almost be said to constitute experience.
In going where you have to go, and doing what you have to do, and seeing what you have to see, you dull and blunt the instrument you write with. But I would rather have it bent and dulled and know I had to put it on the grindstone again and hammer it into shape and put a whetstone to it, and know that I had something to write about, than to have it bright and shining and nothing to say, or smooth and well oiled in the closet, but unused.