"Duty. A starship captain's life is filled with solemn duty. I have commanded men in battle. I have negotiated peace treaties between implacable enemies. I have represented the Federation in first contact with 27 alien species. But none of this compares with my solemn duty today...as best man!"
Jean-Luc Picard was given the honor being William T. Riker's best man to his marriage to Deanna Troi in 2379. Picard, who had served as commanding officer to Riker and Troi since the maiden voyage of the USS Enterprise-D, was proud and honored to take the title of best man. It is a tradition for the best man to give a speech celebrating the newly married couple, and Captain Picard did just that; his heartfelt speech to the happy couple was admired by all in attendance, most notably Deanna. (Star Trek Nemesis)