Only lovers know the value and magnanimity of truth, while traders prize a cheap honesty, and neighbors and acquaintance a cheap civility.
 Henry David Thoreau, A Week on the Concord and Merrimack Rivers (1849). copy citation

Context

“It takes two to speak the truth,—one to speak, and another to hear. How can one treat with magnanimity mere wood and stone? If we dealt only with the false and dishonest, we should at last forget how to speak truth. Only lovers know the value and magnanimity of truth, while traders prize a cheap honesty, and neighbors and acquaintance a cheap civility. In our daily intercourse with men, our nobler faculties are dormant and suffered to rust. None will pay us the compliment to expect nobleness from us. Though we have gold to give, they demand only copper.” source