Destiny and Philosophy

In daily language destiny and fate are synonymous, but with regards to 20th century philosophy the words gained inherently different meanings.

For Arthur Schopenhauer destiny was just a manifestation of the Will to Live. Will to Live is for him the main aspect of the living. The animal cannot be aware of the Will, but men can at least see life through its perspective, though it is the primary and basic desire. But this fact is a pure irrationality and then, for Schopenhauer, human desire is equally futile, illogical, directionless, and, by extension, so is all human action. Therefore, the Will to Live can be at the same time living fate and choice of overrunning the fate same, by means of the Art, of the Morality and of the Ascesis.

For Nietzsche destiny keeps the form of Amor fati (Love of Fate) through the important element of Nietzsche's philosophy named "will to power" (der Wille zur Macht), basis of human behavior, influenced by the Will to Live of Schopenhauer. But this concept may have even other senses, although he, in various places, saw the Will to power as a strong element for adaptation or survival in a better way.[4] In its later forms Nietzsche's concept of the will to power applies to all living things, suggesting that adaptation and the struggle to survive is a secondary drive in the evolution of animals, less important than the desire to expand one’s power. Nietzsche eventually took this concept further still, and transformed the idea of matter as centers of force into matter as centers of will to power as mankind’s destiny to face with amor fati.

The expression Amor fati is used repeatedly by Nietzsche as acceptation-choice of the fate, but in such way it becomes even another thing, precisely a “choice” destiny. We find that in § 276 of

The Gay Science, where he wrote:
I want to learn more and more to see as beautiful what is necessary in things; then I shall be one of those who make things beautiful. Amor fati: let that be my love henceforth! I do not want to wage war against what is ugly. I do not want to accuse; I do not even want to accuse those who accuse. Looking away shall be my only negation. And all in all and on the whole: some day I wish to be only a Yes-sayer.

Quote from "Why I Am So Clever" in Ecce Homo, section 10:
My formula for greatness in a human being is amor fati: that one wants nothing to be different, not forward, not backward, not in all eternity. Not merely bear what is necessary, still less conceal it—all idealism is mendaciousness in the face of what is necessary—but love it.