Persecution, then, gives rise to a peculiar technique of writing, and therewith to a peculiar type of literature, in which the truth about all crucia… - Leo Strauss

Dogmatism as Nietzsche means it implies that one possesses the truth, or at least the most important or the most valuable truth. Yet the truth is elusive like that woman of whom he spoke at the very beginning. Elsewhere he says we are the first generation which no longer believes that it possesses the truth. That is what he means by the end of dogmatism.

But there is a tension between the respect for diversity or individuality and the recognition of natural right. When liberals became impatient of the absolute limits to diversity or individuality that are imposed even by the most liberal version of natural right, they had to make a choice between natural right and the uninhibited cultivation of individuality. They chose the latter. Once this step was taken, tolerance appeared as one value or ideal among many, and not intrinsically superior to its opposite. In other words, intolerance appeared as a value equal in dignity to tolerance. But it is practically impossible to leave it at the equality of all preferences or choices. If the unequal rank of choices cannot be traced to the unequal rank of their objectives, it must be traced to the unequal rank of the acts of choosing; and this means eventually that genuine choice, as distinguished from spurious or despicable choice, is nothing but resolute or deadly serious decision. Such a decision, however, is akin to intolerance rather than to tolerance. Liberal relativism has its roots in the natural right tradition of tolerance or in the notion that everyone has a natural right to the pursuit of happiness as he understands happiness; but in itself it is a seminary of intolerance.

In order to see the relation between philosophy as rigorous science and the alternative to it clearly, one must look at the political conflict between the two antagonists, i.e. at the essential character of that conflict.