Man wants to see nature and evolution as separate from human activities. There is a natural world, and there is man. But man also belongs to the natural world. If he is a ferocious predator, that too is part of evolution. If cod and haddock and other species cannot survive because man kills them, something more adaptable will take their place. Nature, the ultimate pragmatist, doggedly searches for something that works. But as the cockroach demonstrates, what works best in nature does not always appeal to us.
Death is nature's way of making things continually interesting. Death is the possibility of change. Every individual gets its allotted lifespan, its chance to try something new on the world. But time is called and the molecules which make up leaf and limb, heart and eye are disassembled and redistributed to other tenants.
Si l'organisme vivant est un system hiÃ©rarchisÃ© dont le niveau d'organisation est au-dessus du niveau chimique, il est alors Ã©vident qu'il doit Ãªtre Ã©tudiÃ© ? tous les niveaux et qu'une recherche limitÃ©e ? l'un d'entre eux (niveaux chimique par exemple) ne peut remplacer celle effectuÃ©e aux niveau supÃ©rieurs.
We are the intelligent elite among animal life on earth and whatever our mistakes, [Earth] needs us. This may seem an odd statement after all that I have said about the way 20th century humans became almost a planetary disease organism. But it has taken [Earth] 2.5 billion years to evolve an animal that can think and communicate its thoughts. If we become extinct she has little chance of evolving another.
I see young men, my townsmen, whose misfortune it is to have inherited farms, houses, barns, cattle, and farming tools; for these are more easily acquired than got rid of. Better if they had been born in the open pasture and suckled by a wolf, that they might have seen with clearer eyes what field they were called to labor in. Who made them serfs of the soil? Why should they eat their sixty acres, when man is condemned to eat only his peck of dirt? Why should they begin digging their graves as soon as they are born?
I thus found that the student who wishes for a shelter can obtain one for a lifetime at an expense not greater than the rent which he now pays annually. If I seem to boast more than is becoming, my excuse is that I brag for humanity rather than for myself; and my shortcomings and inconsistencies do not affect the truth of my statement.