What is the flow of Jesus' thought in Mark 10:6-8?

Mark 10:6–8 (ESV)

6 But from the beginning of creation, ‘God made them male and female.’

In Mark 10:6 Jesus cites words from Genesis 1:27. Then in Mark 10:7–8a follow the words of Adam in Genesis 2:24, when he takes the woman to himself: Jesus repeats these words. And so he himself now speaks of the duty of the man and the woman. There is, therefore, a flowing transition from the words that are taken from Genesis 2:24 to Jesus’ own continued formulation (Mark 10:8b: “So they are no longer two, but one flesh”).1