Scientology means scio, knowing in the fullest sense of the word, and logos, study. In itself the word means knowing how to know. Scientology is a 'route,' a way, rather than a dissertation or assertive body of knowledge. Through its drills and studies one may find the truth for himself. The technology is therefore not expounded as something to believe, but something to do.
The Basic Dictionary of Dianetics and Scientology (1988), p. 34