"There is a pride which belongs to every rightly-constituted mind, though it is scarcely to be called pride, but rather a proper estimate of self. It is, properly speaking, the elevation of mind which arises when we feel that we have mastered some noble idea and made it our own. Man is proud of the idea only so far as he feels that it has become part of himself."
January 1, 1970
https://en.wikiquote.org/wiki/Wilhelm_von_Humboldt