Great men, unknown to their generation, have their fame among the great who have preceded them, and all true worldly fame subsides from their high estimate beyond the stars.
 Henry David Thoreau, A Week on the Concord and Merrimack Rivers (1849). copy citation

Context

“The poet will prevail to be popular in spite of his faults, and in spite of his beauties too. He will hit the nail on the head, and we shall not know the shape of his hammer. He makes us free of his hearth and heart, which is greater than to offer one the freedom of a city. Great men, unknown to their generation, have their fame among the great who have preceded them, and all true worldly fame subsides from their high estimate beyond the stars. Orpheus does not hear the strains which issue from his lyre, but only those which are breathed into it; for the original strain precedes the sound, by as much as the echo follows after. The rest is the perquisite of the rocks and trees and beasts.” source