Principal

Definition and stakes

Various,  Popular Science Monthly (1914)

“ One of the principal elements in human happiness is the realization of beauty in nature, whether it be in the exquisite form and color of the petal of a rose, the glowing green of the beetle's armor, the flight of the swallow, the moonlight serenade of the mocking bird, the iridescent green and bronze ocelli of the peacock's tail-coverts, the mountains veiled in opalescent mists, the abysmal blue of the ocean, the glory of red and gold in the sunset, or the shimmer of the myriad stars. ”
Source: Wikisource

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