But it is of the highest importance to note that the principle of balance cannot be properly established in any man until each of the elements within him has been developed into its completeness. The failure to do so produces the type of man who knows truth intellectually, talks it fluently, and does the wrong in spite of it. A balance of immature and half-developed faculties is transitory by its very nature and never wholly satisfactory, whereas a balance of fully matured ones is necessarily durable and always perfectly gratifying.
-- Perspectives > Chapter 20: What Is Philosophy? > # 59