 Soon, Dewey began developing his own psychological theories; extant accounts of behavior, he argued, were flawed because they were premised upon outdated and false philosophical assumptions. (He eventually judged that larger questions about the meaning of human existence reached deep into cultural practices and exceeded the resources of psychology; such questions required philosophical investigations of experience in the fields of art, politics, ethics, and religion, etc.) Dewey’s psychological work reconstructed the components of human conduct (instincts, perceptions, habits, acts, emotions, and conscious thought) and these proved integral to later, mature statements about experience. They also informed his lifelong contention that mind, contrary to long tradition, is not fundamentally subjective and isolated, but social and interactive, made through natural and cultural environments.