Definition of "education":
the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. (http://dictionary.reference.com/browse/education)
Definition of "propaganda":
The systematic propagation of a doctrine or cause or of information reflecting the views and interests of those advocating such a doctrine or cause. (http://dictionary.reference.com/browse/propaganda)
Or as accurately stated by the Society themselves:
Education shows you how to think. Propaganda tells you what to think. (Awake! 2000 6/22 p. 9 Do Not Be a Victim of Propaganda!)