NEMO: What you fail to understand is the power of hate. It can fill the heart as surely as love can.

Earl Felton (1909-1972) American screenwriter
20,000 Leagues Under the Sea, screenplay (1954) [with Richard Fleischer]
    (Source)

Explaining his campaign on wagers of war. Based on the novel by Jules Verne (1870). The words are not in the novel.