Here are a few quotes indicating that: "Man has no nature," from the historian Jose Ortega y Gasset; "Man has no instincts," from the anthropologist Ashley Montagu; "The human brain is capable of a full range of behaviors and predisposed to none," from the late scientist Stephen Jay Gould.
Slijedi nekoliko citata koji to pokazuju: "Čovjek nema prirode", od strane povijesničara Josea Ortege y Gasseta; "Čovjek nema instinkte", od strane antropologa Ashleya Montagua; "Ljudski mozak je sposoban za cijeli raspon ponašanja, a za nijedan predodređen", od strane pokojnog znanstvenika Stephena Jay Goulda.