To speak a truth that belongs to another is untruth, for speaking belongs to living, hence to speak another’s truth is to live a life that is not one… - David L. Norton

Because truths of different kinds exhibit the characteristics of incommensurability (their difference is such that they cannot be measured by a single standard or reduced to members of one series) and incompossibility (their difference is such that they cannot co-exist within the same system), such openness introduces both multiplicity and contradiction, and the creature in question stands “divided against himself.”

Loyalty to life, according to Nietzsche, begins in the resolve to seek life’s principle within itself and not in something outside it—not, for example, in a God or supernature that, by being conceived as all that life is not—infinite, eternal, changeless, perfect goodness, perfect plenitude—stands as antithetical to life.

There are most certainly two distinguishable kinds of truths, “truths of reason” (that two plus two equals four) and “truths of fact” (that the sky appears blue). By his resort to his daimon Socrates added the class of “truths of self,” personal truths.