Frederick Wirth, Prenatal Parenting: The Complete Psychological and Spiritual Guide to Loving Your Unborn Child (New York: HarperCollins, 2001), 14.
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Alison Gopnik, The Philosophical Baby: What Children’s Minds Tell Us About Truth, Love, and the Meaning of Life (New York: Farrar, Straus, & Giroux, 2009), 205.
