Source: Mein Kampf [My Struggle] (1925) by Adolf Hitler; Chapter 12 – The First Stage in the Development of the German National Socialist Labour Party.

Complete Sentence: Faith is harder to shake than knowledge, love succumbs less to change than respect, hate is more enduring than aversion, and the impetus to the mightiest upheavals on this earth has at all times consisted less in a scientific knowledge dominating the masses than in a fanaticism which inspired them and sometimes in a hysteria which drove them forward.