First, Darwinian theory tells us how a certain amount of diversity in life forms can develop once we have various types of complex living organisms already in existence.
“The clothes back in those days were made so much better than clothes are today. They actually took time to make clothes to fit a woman's body. Today they make clothes that fit sizes, so it stretches to fit this and that.”
“You must never aspire to 'finish' a house, you can merely hope to start it, and from then on it's an evolutionary process.”