Machiavelli emphasized the need for looking at the "effectual truth" (verita effetuale), as opposed to relying on "imagined republics and principalities". He states the difference between honorable behavior and criminal behavior by using the metaphor of animals, saying that "there are two ways of contending, one in accordance with the laws, the other by force; the first of which is proper to men, the second to beast". In "The Prince" he does not explain what he thinks the best ethical or political goals are, except the control of one's own fortune, as opposed to waiting to see what chance brings. Machiavelli took it for granted that would-be leaders naturally aim at glory or honour. He associated these goals with a need for "virtue" and "prudence" in a leader, and saw such virtues as essential to good politics. That great men should develop and use their virtue and prudence was a traditional theme of advice to Christian princes. And that more virtue meant less reliance on chance was a classically influenced "humanist commonplace" in Machiavelli's time, as says, even if it was somewhat controversial. However, Machiavelli went far beyond other authors in his time, who in his opinion left things to fortune, and therefore to bad rulers, because of their Christian beliefs. He used the words "virtue" and "prudence" to refer to glory-seeking and spirited excellence of character, in strong contrast to the traditional Christian uses of those terms, but more keeping with the original pre-Christian Greek and Roman concepts from which they derived. He encouraged ambition and risk taking. So in another break with tradition, he treated not only stability, but also radical innovation, as possible aims of a prince in a political community. Managing major reforms can show off a Prince's virtue and give him glory. He clearly felt Italy needed major reform in his time, and this opinion of his time is widely shared.