Marius notes, "More was not above wrenching a historical tale around to make it prove what he wanted to prove." (pg. 104) As with any published academic endeavor, Marius has opened himself (or opened himself, since he has been dead since 1999) to inevitable criticism from other (perhaps jealous), scholars with differing opinions.

But ultimately, Marius proved his merit repeatedly. Not only did he continue to further his research and engage interest in More through articles, but he also went on the speaking circuit. All of this validated what he initially wrote in his More biography.

Marius examines other prominent figures and important scholars of the time, including Erasmus and Martin Luther (Marius wrote a biography on latter, too).

If Marius demonstrates any bias, it's the concerted effort he makes to present More as a whole person, flaws and all. He carefully cites incidents, some more documented historically than others, and focuses on More's role and his relationships.

Marius devotes a couple of chapters to More's own writings on Richard III (even though More was about seven years old at the time of Richard's death), this dedicated interest of More's, who was undoubtedly phenomenally busy with his large family and court duties, clearly is discussed in his book because Marius wants to show More's intelligence and focus.

Marius also completely examines More's writings...

More's literary endeavors take up a good portion of Marius' biography. Marius' intent is undoubtedly to discuss More's writing, and focus on what those work reveal about More as a man.
Because Marius has an interest in the psychological, he breaks down each of More's writings and activities, theologically and politically, all of which, again, define More's character and faith.

And it's the aspect of motivation that ultimately separates Marius from other biographers. While there's a lot of detail to the twice-married father and his devoted family life, it also chronicles, with detail and interest, the machinations of More's daily life.

While there have been many books either dedicated exclusively to More or feature him, Marius biography provides such a well-written account (hence rendering it completely readable), filled with factual history and stories and observations that aren't found anywhere else. it's Marius' objectivity and his innate non-judgmental stance throughout that make his biography, in this reviewer's opinion, the definitive.