I agree, that he did much for the art and advancement of Taekwondo. However I belive he let his ego get in the way of many things as well.

As we all know Taekwondo is now it's own unique art, that has influences from many others, including Shotokan. It was not made from a single founder or idea, but a collection of many arts, that developed into its own unique style.
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"There is no such thing as Perfection... Only excellence"