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21 " An evolutionary perspective of our place in the history of the earth reminds us that Homo sapiens sapiens has occupied the planet for the tiniest fraction of that planet's four and a half thousand million years of existence. In many ways we are a biological accident, the product of countless propitious circumstances. As we peer back through the fossil record, through layer upon layer of long-extinct species, many of which thrived far longer than the human species is ever likely to do, we are reminded of our mortality as a species. There is no law that declares the human animal to be different, as seen in this broad biological perspective, from any other animal. There is no law that declares the human species to be immortal. "
― Richard E. Leakey
22 " The dangers that we face are part of the process, now well underway, of the unification of the planet--in language, culture, science, and commerce. They are both driven by the identical technological advances--this critical and delicate time coincides with the widespread availability of nuclear weapons. At the present rate of change, it seems likely that in the period between now and 2061, the turning point for the human species will have been reached.If we survive until then, our passage to the next apparition of Halley's Comet should be comparatively easy. That perihelion passage will be in March 2134, when the comet will make an unusually close encounter with the Earth. It will come as close as 0.09AU or 14 million kilometers, less than half the distance of the 1910 encounter. It will then be brighter than the brightest star. If there are those to do the commemorating, the years 2061 and 2134 should be celebrated for the courage, intelligence, and common purpose of a species forced by urgent necessity to come to its senses. "
― Carl Sagan , Comet
23 " I think it's a shame that something as creative and vital to the nature of the human species as story-telling is largely controlled by the soulless cretins known as publishers. "
― Piers Anthony
24 " By making our defenseless planet the ultimate beneficiary of our economic activity, we align our values with a different set of motivations. When we begin to see life as an interdependent mesh, we place the survival of the human species on equal footing with our economic interests and ourselves. "
― , MEMEnomics: The Next Generation Economic System
25 " The love between man and woman is a voluntary pact in which the one who falls short is only guilty of perfidy, but when a woman has become a mother her duty is greater because nature has entrusted the human species to her. If she fails then she is a coward, unworthy and infamous. "
― Guy de Maupassant , Pierre et Jean
26 " The Paraclete and " Book of Martha" narratives were ultimately versions of the dream of " fixing" of the human species that had driven (and stymied) the Parables books: " On the one hand," she writes in her journal, " I want to write fix-the-world scenario. I seem to need to write them. The fact that I don't believe in them--don't believe humanity is fixable--does create a problem "
27 " In the United States both scholars and the general public have been conditioned to viewing human races as natural and separate divisions within the human species based on visible physical differences. With the vast expansion of scientific knowledge in this century, however, it has become clear that human populations are not unambiguous, clearly demarcated, biologically distinct groups. Evidence from the analysis of genetics (e.g. DNA) indicates that most physical variation, about 94%, lies within so-called racial groups. Conventional geographic " racial" groupings differ from one another only in about 6% of their genes. This means that there is greater variation within " racial" groups than between them. In neighboring populations there is much overlapping of genes and their phenotypic (physical) expressions. Throughout history whenever different groups have come into contact, they have interbred. The continued sharing of genetic materials has maintained all of humankind as a single species. "
28 " When viewed at the next quantum level of perspective, from which the Earth is seen as an organism and humans are seen as microorganisms, the human species looks like a menace to the planet. In fact, the human race is looking a lot like a disease -- comprised of organisms excessively multiplying, mindlessly consuming, and generating waste with little regard for the health and well-being of its host -- planet Earth. "
― , The Humanure Handbook: A Guide to Composting Human Manure
29 " Her hope was to preserve what she called The Way, to keep it alive, for that future moment when the current obsession with excess and hierarchy imploded. Wilma said many Native people believed that the earth as a living organism would just one day shrug off the human species that was destroying it—and start over. In a less cataclysmic vision, humans would realize that we are killing our home and each other, and seek out The Way. That’s why Native people were guarding it. "
― Gloria Steinem , My Life on the Road
30 " The human in what it is objectively ever since its beginning is two, two who are different. Each part of what constitutes the unity of the human species corresponds to a proper being and a proper Being, to an identity of one's own. In order to carry out the destiny of humanity, the man-human and the woman-human each have to fulfill what they are and at the same time realize the unity that they constitute. "
― Luce Irigaray , The Way of Love
31 " In a state therefore of great equality and virtue, where pure and simple manners prevailed, the increase of the human species would evidently be much greater than any increase that has been hitherto known. "