SCIENTOLOGY SYMBOL, the S and double triangle. There, are two triangles over which the S is imposed. The S simply stands for Scn which is derived from “Scio” (knowing in the fullest sense). The lower triangle is the A-R-C triangle–its points being affinity, reality and communication. These are the three elements which combined give understanding. The upper triangle is the K-R-C triangle. The points are K for knowledge, R for responsibility and C for control. (HCO PL 18 Feb 72)
Hubbard, L. R. (1976). Modern Management Technology Defined. Los Angeles: Church of Scientology of California Publications Organization United States.