If people were liberal enough to permit every one to go to heaven in his or her own way, the opponents of our maxim would be easily convinced of its truth. But instead of doing this, people follow the usual course of shortsightedness and make their private standpoint a universal one. They call their own private welfare the only true welfare, and regard the welfare of other nations, times and conditions a mistake. So does every school of art declare its own subjective taste to be objective beauty, ignoring the fact that unity is but a matter of ideas, of thought, while reality is full of the most varied forms. The real welfare is manifold and the true welfare but a subjective choice which, like a funny story, may make an entirely different impression on others, and be a false welfare. Even though Kant, or Fichte, or some other particular philosopher, may discuss at length the purpose of mankind and solve the problem to his full satisfaction and to that of his audience, we nevertheless have learned enough today to know that one can define one's own personal idea of the purpose of mankind by means of abstract speculation, but that one cannot discover any unknown and hidden object in this way. Thought, or reason, requires some object, and its work is that of measuring, of criticising. It may distinguish between true and false welfare, but will also remember that they have their limits, remember that it is itself personal and that its distinctions are likewise personal and cannot be generalized beyond the point where others receive the same impression of the same object. Humanity is an idea, while man is always some special person who has his or her peculiar life in a definite environment and is therefore subservient to general principles only from motives of self-interest. The sacrifice of ethics, like that of religion, is only seemingly a self-denial and serves the ends of reasonable self-interest, an expenditure with a view to greater gains. A morality worthy of that name which is not better defined by the term obedience can be exercised only through the understanding of its worth, of its value for our welfare, of its usefulness. The variety of political parties is conditioned on the varieties of the interests concerned, and the difference in the means is conditioned on the difference in ends. In questions of less importance even the champions of absolute morality testify to this fact.