The foundational idea for this philosophy of learning and education is that all humans can learn. Humans organize sets of knowledge and skills into conceptual models; the conceptual models are both explanatory and predictive. Physical, motivational, and social factors affect the rate and depth of learning, though all humans are capable of learning a wide array of knowledge and skills. Education is the formal process of learning the conceptual models for sets of knowledge and skills; if this process works well, formal education produces humans with broad and deep conceptual models for knowledge and skills.