From page 182 in the “Editors Table” section of The Knickerbocker, New-York Monthly Magazine of February, 1844.

The man whose heart is capable of any patriotic emotion, who feels his pulse quicken when the idea of his country is brought home to him, must desire that country to possess a voice more majestic than the roar of party, and more potent than the whine of sects; a voice which should breathe energy and awaken hope where-ever its kindling tones are heard. The life of our native land; the inner spirit which animates its institutions; the new ideas and principles, of which it is the representative; these every patriot must wish to behold reflected from the broad mirror of a comprehensive and soul-animating literature. The true vitality of a nation is not seen in the triumphs of its industry, the extent of its conquests, or the reach of its empire; but in its intellectual dominion. Posterity passes over statistical tables of trade and population, to search for the records of the mind and heart. It is of little moment how many millions of men were included at any time under the name of one people, if they have left no intellectual testimonials of their mode and manner of existence, no ‘foot-prints on the sands of time.’ The heart refuses to glow at the most astounding array of figures. A nation lives only through its literature, and its mental life is immortal. …

This is not generally taken to be true in our era. Nowadays, it’s empire, conquests, and industry winning hands down.

And thus are we rendered merely mortal. Damn them.