A study of children’s conversations with their caretakers sheds light on the timeline of the emergence of moral foundation words in the first six years of life in English-speaking children. Moral Foundations theory posits that morality is largely intuitive and underlaid by modular foundations. The original set of five foundations proposed by researchers includes Care/Harm, Fairness/Cheating, Authority/Subversion, Loyalty/Betrayal, and Purity/Degradation.