"If people are highly successful in their professions they lose their sense. Sight goes. They have no time to look at pictures. Sound goes. They have no time to listen to music. Speech goes. They have no time for conversation. Humanity goes. Money making becomes so important that they must work by night as well as by day. Health goes. And so competitive do they become that they will not share their work with others though they have more themselves. What then remains of a human being who has lost sight, sound, and sense of proportion? Only a cripple in a cave."

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A few years ago, they [Neandertals] were thought to be ancestral to anatomically modern humans, but now we know that modern humans appeared at least 100,000 years ago, much before the disappearance of the Neandertals. Moreover, in caves in the Middle East, fossils of modern humans have been found dated 120,000-100,000 years ago, as well as Neandertals dated at 60,000 and 70,000 years ago, followed again by modern humans dated at 40,000 years ago. It is unclear whether the two forms repeatedly replaced one another by migration from other regions, or whether they coexisted in some areas

— Francisco J. Ayala