Final answer:
John Winthrop's philosophy of leading was expressed in his speech 'A Model of Christian Charity,' where he emphasized building economic prosperity and creating an ideal Christian community.
Step-by-step explanation:
John Winthrop's philosophy of leading can be understood through his speech titled 'A Model of Christian Charity.' In this speech, he expressed his hopes for the Puritan community in the Americas to build economic prosperity and serve as a shining example of an ideal Christian community to the entire world. He envisioned their settlement as a 'City upon a Hill' that would inspire others.