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.