To put it simply, the superman's thesis will be this: that he has been put into the world without his consent, that he must live in the world, that he owes nothing to the other people there, and that he knows nothing whatever of existence beyond the grave. Therefore, it will be his effort to attain the highest possible measure of satisfaction for the only unmistakable and genuinely healthy instinct within him: the yearning to live--to attain power--to meet and overcome the influences which would weaken or destroy him. "Keep yourselves up, my brethren," cautions Zarathustra, "learn to keep yourselves up! The sea is stormy and many seek to keep afloat by your aid. The sea is stormy and all are overboard. Well, cheer up and save yourselves, ye old seamen!... What is your fatherland? The land wherein your children will dwell.... Thus does your love to these remote ones speak: 'Disregard your neighbors! Man is something to be surpassed!' Surpass yourself at the expense of your neighbor. What you cannot seize, let no man _give_ you.... Let him who can command, obey!"[11] The idea, by this time, should be plain. The superman, in the struggle for existence, asks and gives no quarter. He believes that it is the destiny of sentient beings to progress upward, and he is willing to sacrifice himself that his race may do so. But his sacrifice must benefit, not his neighbor--not the man who should and must look out for himself--but the generations yet unborn. It must be borne in mind that the superman will make a broad distinction between instinct and passion--that he will not mistake the complex thing we call love, with its costly and constant hurricanes of emotion, for the instinct of reproduction--that he will not mistake mere anger for war--that he will not mistake patriotism, with all its absurdities and illusions, for the homing instinct. The superman, in brief, will know how to renounce as well as how to possess, but his renunciation will be the child, not of faith or of charity, but of expediency. "Will nothing beyond your capacity," says Zarathustra. "Demand nothing of yourself that is beyond achievement!... The higher a thing is, the less often does it succeed. Be of good cheer! What matter! Learn to laugh at yourselves!... Suppose you have failed? Has not the future gained by your failure?"[12] The superman, as Nietzsche was fond of putting it, must play at dice with death. He must have ever in mind no other goal but the good of the generations after him. He must be willing to battle with his fellows, as with illusions, that those who came after may not be afflicted by these enemies. He must be supremely unmoral and unscrupulous. His must be the gospel of eternal defiance.