English to Spanish Art/Literary Religion

For a while, Western culture—from sheer inertia—continued to live by the old Christian ethics while increasingly embracing ***the mechanistic, time-plus-chance view of people***. People came more and more to hold that the universe is intrinsically and originally impersonal—as a stone is impersonal. Thus, by chance, life began on the earth and then, through long, long periods of time, by chance, life became more complex, until man with his special brain came into existence. By ‘chance’ is meant that there was no reason for these things to occur; they just happened that way.