Every mission constitutes a pledge of duty. [ Mazzini ]

Manner, as much as matter, constitutes eloquence. [ Francois Delsarte ]

What constitutes a state?... Men who their duties know,
But know their rights, and knowing, dare maintain. [ Sir William Jones ]

An uncommon degree of imagination constitutes poetical genius. [ Dugald Stewart ]

Not what we have, but what we enjoy, constitutes our abundance. [ J. Petit-Senn ]

The moral amelioration of man constitutes the chief mission of woman. [ A. Comte ]

To desire the same things and to reject the same things, constitutes true friendship. [ Sallust ]

There cannot be a body of rules without a rationale, and this rationale constitutes the science. [ Sir G. C. Lewis ]

The possession of a library, or the free use of it, no more constitutes learning, than the possession of wealth constitutes generosity. [ S. Smiles ]

Truth may work mightily though in the hand of the sorriest instrument; in the case of the beautiful alone the casket constitutes the jewel (the vessel makes the content). [ Friedrich Schiller ]

Genius, that power which constitutes a poet; that quality without which judgment is cold and knowledge is inert: that energy which collects, combines, amplifies and animates. [ Johnson ]

Plead or Pleaded? He plead not guilty or He pleaded not guilty. Pleaded, not plead, constitutes the imperfect tense and the perfect participle of the verb to plead. Hence, in the example quoted the correct word is pleaded. [ Pure English, Hackett And Girvin, 1884 ]

Whatever of true glory has been won by any nation of the earth; whatever great advance has been made by any nation in that which constitutes a high Christian civilization, has been always at the cost of sacrifice; has cost the price marked upon it in God's inventory of national good. [ J. G. Holland ]