Scott

“A friend is a person with whom I may be sincere. Before him I may think aloud. I am arrived at last in the presence of a man so real and equal, that I may drop even those undermost garments of dissimulation, courtesy, and second thought, which men never put off, and may deal with him with the simplicity and wholeness with which one chemical atom meets another.”
― Ralph Waldo Emerson , Essays, First Series

“I don't need a friend who changes when I change and who nods when I nod; my shadow does that much better.”
― Plutarch

“Be slow to fall into friendship, but when you are in, continue firm and constant.”
― Socrates

“Nothing makes the earth seem so spacious as to have friends at a distance; they make the latitudes and longitudes.”
― Henry David Thoreau