I found Diderot's essay to be the most interesting and relevant of this section. His theory on education was the most compelling because it calls for a comprehensive approach, which recognizes each individual's unique circumstances and values their particular needs in order to ensure successful learning outcomes. He advocated for teachers to act as facilitators of knowledge, not mere purveyors of facts. He also emphasized the importance of "heart-knowledge," which would enable children to form positive moral virtues and lead a meaningful life. This type of education promotes independent thinking, critical analysis, and empathy - all traits that make these works and theories memorable.