 The theory of the two truths, or two realities, is fundamental to Madhyamaka philosophy. Reality can be classified in terms of the conventional truth (or conventional reality), which corresponds to the way that things appear to ordinary persons, and the ultimate truth (or ultimate reality), which corresponds to the way that things really are. While Mādhyamikas tend to disagree about the nature of and relationship between the conventional and ultimate truths, the final goal of Madhyamaka philosophy involves realizing the ultimate truth – seeing things not just as they appear, but as they really are.