"Always history is being made; opinions attitudes and institutions change, and there is evolution in the nature of capitalism"

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The general struggle for existence of animate beings is not a struggle for raw materials, these for organisms are air water & soil, all abundantly available, nor for energy which exists in plenty in the sun and any hot body in the form of heat, but rather a struggle for entropy, which becomes available through the transition of energy from the hot sun to the cold earth.

— Ludwig Boltzmann