I believe they both understood "the One" differently but in their intended description of this Divine Form or universal creator was similar. While, Maimonides understood this un-comprehensible God with a more personal and celestial essence, but he shared that same idea of only being able to describe "the One" through negative attributes. So, people can describe the predicate of God, but it only describes the action, because there is no known copy of God to compare. Maimonides uses five methods to describe things, and while, all of these lack any ability to define God, but the last describes the actions of God. As described in Module 6, the definition, partial definition, qualities, relation to fellow things, and the actions are Maimonides