As an analogy one can imagine an intelligent amoeba with a good memory. As time progresses the amoeba is constantly splitting, each time the resulting amoebas having the same memories as the parent. Our amoeba hence does not have a life line, but a life tree.
Therefore we well observe that the title of perfect cadence is attached only to a dominant that progresses to the main tone, because this dominant, which is naturally contained within the harmony of the main tone, seems, when it progresses to it, to return as if to its source.jean-philippe rameau
Each worldview was a cultural product, but evolution is true and separate creation is not. […] Worldviews are social constructions, and they channel the search for facts. But facts are found and knowledge progresses, however fitfully. Fact and theory are intertwined, and all great scientists understand the interaction.stephen jay gould
...“progress”, in poetry at least, comes not so much from digesting the last age as from rejecting it altogether (or, rather, from eating a little and leaving a lot), and...the world’s dialectic is a sort of neo-Hegelian one in which one progresses not by resolving contradictions but by ignoring them.Randall Jarrell
The modern poet has no essential alliance with regular schemes of any sorts.He reserves the right to adapt his rhythm to his mood, to modulate his metre as he progresses. Far from seeking freedom and irresponsibility (implied by the unfortunate term free verse) he seeks a stricter discipline of exact concord of thought and feeling.herbert read
As the age of television progresses the Reagans will be the rule, not the exception. To be perfect for television is all a President has to be these days.gore vidal
Human history becomes more and more a race between education and catastrophe... Yet, clumsily or smoothly, the world, it seems, progresses and will progress.