“I believe natural beauty has a necessary place in the spiritual development of any individual or any society. I believe that whenever we substitute something man-made and artificial for a natural feature of the earth, we have retarded some part of man's spiritual growth.” MenBelieveMadeEarthSpiritualScienceIndividualI BelieveGrowthNaturalDevelopmentFeaturesSpiritual GrowthSubstitutesArtificialSpiritual DevelopmentRetarded Book:The house of life: Rachel Carson at work Source: The house of life: Rachel Carson at work