Sentence:  He will ever be my example as a true statesman ; one who <WSD>is</WSD> thoroughly human , who affects no dignity , and who is endowed with real ability , genuine worth , and sterling honesty - all dedicated to secure the best interests of the country he has loved and served so long . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)