Knowledge is power." Rather, knowledge is happiness, because to have knowledge - broad, deep knowledge - is to know true ends from false, and lofty things from low. To know the thoughts and deeds that have marked man's progress is to feel the great heart-throbs of humanity through the centuries; and if one does not feel in these pulsations a heavenward striving, one must indeed be deaf to the harmonies of life.
Helen KellerWe cannot freely and wisely choose the right way for ourselves unless we know both good and evil.
Helen KellerAs selfishness and complaint pervert the mind, so love with its joy clears and sharpens the vision.
Helen Keller