• Nature is not something to be fought, conquered and changed according to any human whims. To some extent, of course, it has to be used. But what man should seek in regard to nature is not a complete domination but a modus vivendi - that is, a manner of living together, a coming to terms with something that was here before our time and will be here after it. The important corollary of this doctrine, it seems to me, is that man is not the lord of creation, with an omnipotent will, but a part of creation, with limitations, who ought to observe a decent humility in the face of the inscrutable.