The more precise significance of this idea is that we get to know opinions only, thus laying emphasis upon the word Opinion. Now the direct opposite of opinion is the Truth; it is Truth before which mere opinion pales. Those who in the history of Philosophy seek mere theories, or who suppose that on the whole only such are to be found within it, also turn aside when that word Truth confronts them. Philosophy here encounters opposition from two different sides. On the one hand piety openly declares Reason or Thought to be incapable of apprehending what is true, and to lead only to the abyss of doubt; it declares that independent thought must be renounced, and reason held in bounds by faith in blind authority, if Truth is to be reached. Of the relation existing between Religion and Philosophy and of its history, we shall deal later on. On the other hand, it is known just as well, that so-called reason has maintained its rights, abandoning faith in mere authority, and has endeavoured to make Christianity rational, so that throughout it is only my personal insight and conviction which obliges me to make any admissions. But this affirmation of the right of reason is turned round in an astonishing manner, so that it results in making knowledge of the truth through reason an impossibility. This so-called reason on the one hand has combated religious faith in the name and power of thinking reason, and at the same time it has itself turned against reason and is true reason’s adversary. Instinct and feeling are maintained by it against the true reason, thus making the measure of true value the merely subjective—that is a particular conviction such as each can form in and for himself in his subjective capacity. A personal conviction such as this is no more than the particular opinion that has become final for men.