Why does Jesus’ wording of the Shema include the addition of ‘and with all your mind?’

The vast majority of translations of Deuteronomy 6:4-5 read something like this: "Hear, O Israel, YHWH is our god; YHWH is one. And thou shalt love YHWH thy god with all thy heart, and with all thy soul, and with all thy might." Assu...