The author is James Hankins, and the subtitle is Soulcraft and Statecraft in Renaissance Italy. Here is one excerpt:
I have sought to present the political ideas of the humanists as the expression of a movement of thought and action, similar in its physiognomy if not in its content to the movement of the philosophes of the Enlightenment. It was a movement that was stimulated by a crisis of legitimacy in late medieval Italy and by widespread disgust with its political and religious leadership. Its adherents were men who had wide experience — often bitter, personal experience — with tyranny. They knew that oligarchs and even popular governments could be as tyrannical as princes. Their movement was largely in agreement about its goals: to rebuild Europe’s depleted reserves of good character, true piety, and practical wisdom. They also agreed widely about means: the revival of classical antiquity, which the humanists presented as an inspiring pageant, rich in examples of noble conduct, eloquent speech, selfless dedication to country, and inner moral strength, nourished by philosophy and uncorrupt Christianity. The humanist movement yearned after greatness, moral and political. Its most pressing historical questions were how ancient Rome had achieved her vast and enduring empire, and whether it was possible to bring that greatness to life again under modern conditions. This led to the question of whether it was the Roman Republic or the Principate that should be emulated; and, once the humanists had learned Greek, it provoked the further question of whether Rome was the only possible ancient model to emulate, or whether Athens or Sparta, or even the Persia of Xenophon’s Cyrus, held lessons for contemporary statesmen.
An excellent book, you can order it here.