"I stand here on the summit of the mountain. I lift my head and I spread my arms. This, my body and spirit, this is the end of the quest. I wished to know the meaning of things. I am the meaning. I wished to find a warrant for being. I need no warrant for being, and no word of sanction upon my being. I am the warrant and the sanction. It is my eyes which see, and the sight of my eyes grants beauty to the earth. It is my ears which hear, and the hearing of my ears gives it's song to the world. It is my mind which thinks, and the judgment of my mind is the only searchlight that can find the truth. It is my will which chooses, and the choice of my will is the only edict I must respect. Many words have been granted me, and some are wise, and some are false, but only three are holy: "I will it!" Whatever road I take, the guiding star is within me; the guiding star and the load stone which point the way. They point in but one direction. They point to me. I know not if this earth on which I stand is the core of the universe or if it is but a speck of dust lost in eternity. I know not and I care not.
For I know what happiness is possible to me on earth. And my happiness needs no higher aim to vindicate it. My happiness is not the means to an end. It is the end. It is it's own goal. It is it's own purpose. Neither am I the means to any end others may wish to accomplish. I am not a tool for their use. I am not a servant of their needs. I am not a bandage for their wounds. I am not a sacrifice on their alters". -Ayn Rand
"The right of nature, which writers commonly call jus naturale, is the liberty each man hath to use his own power as he will himself for the preservation of his own nature; that is to say, of his own life; and consequently, of doing anything which, in his own judgement and reason, he shall conceive to be the aptest means thereunto" Thomas Hobbs (1588-1679)-Leviathan
The Matter, Form and Power of a Commonwealth Ecclesiastical and Civil By Thomas Hobbes, Published April 1651