The power of discrimination is definitely more valuable than bookish knowledge, wealth and physical strength. The coordination of thoughts, words and deeds is the first step in spiritual growth. Lack of correlation between ideas, utterances and actions leads to self-destruction, hypocrisy and spiritual bankruptcy. The proper study of mankind is man. The generation, expression and efflorescence of humanitarian depends on the proper integration of thought, speech and action. In other words, the rapport between mental and physical activities is an essential ingredient of spiritual training.
(Summer Showers 1979, pg 15)