“Be fit for more than the thing you are now doing. Let every one know that you have a reserve in yourself; that you have more power than you are now using. If you are not too large for the place you occupy, you are too small for it.”

Love it!  It's certainly refreshing to hear rather than blaming others and making demands.  Be somebody.  ;-)

Whether in public service, private business, or private association, even among the ranks of civilian boots on the ground, it is perceived as an asset or threat, to another's position of influence. A position to be tread lightly in the face of opposition. " If you are not too large for the place you occupy, you are too small for it." 
There are a few biblical refs, to such a position of leadership granted. In many ways President Garfield's agenda repeats itself. 
Calling out corruption is never popular, when so many are on the take.

I like it — a lot. harmonizes well with a positive attitude self portrait.