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The respect for human life is the first among the great challenges of humanity today . Indeed , as we humans begin to turn to the ocean more for means to our future survival on Earth , we need to know how our actions might impact that ecosystem . When the whole of the world is reduced to nothing but human product , we will have lost the map that can show us how we got here , and can offer our spirits an answer when we ask why . Now this is an illustration of the nature of true opinions : while they abide with us they are beautiful and fruitful , but they run away out of the human soul , and do not remain long , and therefore they are not of much value until they are fastened by the tie of the cause ; and this fastening of them , friend Meno , is recollection , as you and I have agreed to call it . In other words , must we state that products , which contain cobalt phthalocyanine , are considered by IARC to be possibly carcinogenic to humans ( Group 2B ) , when specific information in the IARC Monograph says that there is inadequate evidence for the carcinogenicity of organic cobalt-containing compounds . The presence of coliform bacteria , which can be found in the feces of humans and animals , indicates that there is a high probability of other pathogenic organisms ( disease causing germs ) present . ' " Computers Talk - Say good-bye to stilted electronic chatter : new synthetic-speech systems sound authentically human , and they can respond in real time . To increase focus on the substance of Clive Ponting 's excellent book about the impact humans have had upon the globe , and to provide a second experience with creating and using home-grown web material , the class collectively , through teams , will create a complete review of Ponting 's book and mount it on the web site . Scientists have attempted to simulate human speech since the late 1700s , when Wolfgang von Kempelen built a ' Speaking Machine ' that used an elaborate series of bellows , reeds , whistles and resonant chambers to produce rudimentary words . Okay , so you rule out A. aferensis as being to ape-like , and Neanderthal as being too human-like ( despite the fact that Austrolophithecus aferensis is obviously not even remotely the same as modern apes and Neanderthals are no even remotely the same as modern humans ) .