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, Friendship (1841). copy citation

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Author Ralph Waldo Emerson
Source Friendship
Topic simplicity courtesy
Date 1841
Language English
Reference in "Essays: First Series"
Note
Weblink https://en.wikisource.org/wiki/Essays:_First_Series/Friendship

Context

“The gifts of fortune may be present or absent, but all the speed in that contest depends on intrinsic nobleness, and the contempt of trifles. There are two elements that go to the composition of friendship, each so sovereign that I can detect no superiority in either, no reason why either should be first named. One is Truth. 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. Sincerity is the luxury allowed, like diadems and authority, only to the highest rank, that being permitted to speak truth, as having none above it to court or conform unto. Every man alone is sincere.” source