Internationally, different legal conflicts in the sense of antinomies between the obligations arising from two treaties or laws are often attributed to global legal diversity. These conflicts are increasingly posing problems given the increasing levels of complexity and rapid pace of change in the world today. To successfully tackle the challenges resulting from these conditions, it is necessary to search for the underlying causes of international legal conflicts. Particularly, trying to avoid or dissolve such conflicts requires knowing their origins. First, this question demands the clarification of whether the global diversity of legal systems is caused by legal education or by other factors within the context, such as history, culture or language. In short, it asks whether legal diversity is inherited (nature) or acquired (nurture), which is an important step in the avoidance or solution of legal conflicts altogether. To this end, the present chapter relies on so-called “essentially oxymoronic concepts” to enquire more closely into the origin of legal diversity by means of comparative law. In trying to ascertain some requirements for the solution and avoidance of legal conflicts, the chapter further examines the requisites of legal education in the training of the future global lawyer.