If now any one has a lurking doubt of the physical value of an active and well-stored mind, let him pass from the preachers to the statesmen, from the men who teach the wisdom of the world to come to the men who administer the things of this world. Let him begin with the grand names of the Long Parliament,--Hampden, Pym, Vane, Cromwell,--and then gather up all the great administrators of the next two centuries, down to the octogenarians who are now foremost in the conduct of British affairs; and if he wishes to widen his observation, let him pass over the Channel to the Continent, and in France recall such names as Sully and Richelieu, Mazarin and Colbert, Talleyrand and Guizot; in Austria, Kaunitz and Metternich. And when he has made his list as broad, as inclusive of all really great statesmanship everywhere as he can, find his average; and if he can bring it much beneath seventy, he will be more fortunate than we were when we tried the experiment. Do not by any means omit the men of science. There are the astronomers. If any employment would seem to draw a man up to heaven, it would be this. Yet, of all men, astronomers apparently have had the most wedded attachment to earth. Galileo, Newton, La Place, Herschel,--these are the royal names, the fixed stars, set, as it were, in that very firmament which for so many years they searched with telescopic eye. And yet neither of them lived less than seventy-eight years. As for the men of natural science, it looks as though they were spared by some Providential provision, in order that they might observe and report for long epochs the changes of this old earth of ours. Cuvier dying at seventy-five, Sir Joseph Banks at seventy-seven, Buffon at eighty-one, Blumenbach at eighty-eight, and Humboldt at fourscore and ten, are some of the cases which make such a supposition altogether reasonable. Cross the ocean, and you will find the same testimony, that mental culture is absolutely favorable to physical endurance. The greatest men in our nation's history, whether in walks of statesmanship, science, or literature, almost without exception, have lived long. Franklin, Washington, Jefferson, Madison, the elder Adams, and Patrick Henry, in earlier periods,--the younger Adams, Clay, Calhoun, Webster, Choate, and Everett, Irving, Prescott, Cooper, and Hawthorne, in later times,--are cases in point. These men did not die prematurely. They grew strong by the toil of the brain. And to-day the quartette of our truest poets--Bryant, Whittier, Longfellow, and Holmes--are with us in the hale years of a green age, never singing sweeter songs, never harping more inspiring strains. Long may our ears hear their melodies! * * * * * If now we could enter the walks of private life, and study widely the experience of individual men, we should have an interesting record indeed, and a manifold and wellnigh irresistible testimony. Consider a few remarkable, yet widely differing cases.