The quote is lifted from his 1989 novel The Vision of Elena Silves, in which it's spoken by a member of a guerrilla group which operates under the motto "Marxism–Leninism will open the shining path to revolution". While Hollande is standing as the Socialist party candidate, odds are his advisers wouldn't recommend him positioning himself as far left as that.The quote in question was: "They failed because they did not start with a dream."
Ah, well. Perhaps next time Hollande will stick to Molière: "Le chemin est long du projet à la chose" (Tartuffe). Will this be Hollande's bravitude moment? On verra. As Molière also wrote, "Contre la médisance il n'est point de rempart." (h/t KirkMc)