
Whoever invented the phrase "the naked truth" had perceived an important connection. Nakedness is shocking to all right-minded people, and so is truth. It matters little with what department you are connected; you will soon find that rtuth is such as nice people will not admit into their consciousness.
Source: Bertrand Russell: Nice People, 1930 (pub. in 1931)
More info.:http://russell-j.com/beginner/0464NP-060.HTM