Doers and Thinkers - Why to change yourself, you must change the world first.

You can't only just your self by changing your mind through the intake of theories/stories and reading (by the modification of your internal working model - which serves as how you then act and behave); but you can also change yourself by doing.

Doing produces results which (if they are measured and thought as feedback) can be referenced against benchmarks, allowing you to reflect upon why this is, what I want to do better, how I can try next time; this overall process changes the external world and in turn by thinking about how the external world was changed and why, you can change your thinking and thus keep doing while reflecting upon your actions.
Why keep trying to change your internal mind (internal world) with no results in the external world? You think you can automatically prepare for all possibilities and understand everything in advance of doing and acting upon the world?

The doers are the ways who have the upper hand. Do then think - and in this way, the world is changing in your image, and your image is changing based on how you think the world should be changed.
Nobody knows all the answers, unless they act on the world and see what really happens. In that change within the external world is where the truth is.

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