In retrospect, the person I feel most grateful to is the late President Franklin D. Roosevelt. For he appreciated the value of a history of this sort… - Samuel Eliot Morison

He <nowiki>[</nowiki>Columbus<nowiki>]</nowiki> enjoyed long stretches of pure delight such as only a seaman may know, and moments of high, proud exultation that only a discoverer can experience.

Theodore Roosevelt in his presidential address before the American Historical Association in 1912 made a ringing plea to the young historian to do better: “He must ever remember that while the worst offense of which he can be guilty is to write vividly and inaccurately, yet that unless he writes vividly he cannot write truthfully; for no amount of dull, painstaking detail will sum up the whole truth unless the genius is there to paint the truth.”

To these young men especially, and to all young men I say (as the poet Chapman said to the young Elizabethan): “Be free, all worthy spirits, and stretch yourselves!” Bring all your knowledge of life to bear on everything that you write. Never let yourself bog down in pedantry and detail. Bring history, the most humane and noble form of letters, back to the proud position she once held; knowing that your words, if they are read and remembered, will enter into the stream of life, and perhaps move men to thought and action centuries hence, as do those of Thucydides after more than two thousand years.