Greetings.

"Man can will nothing unless he has first understood that he can count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets for himself, with no other destiny than the one he forges for himself on this earth." 

- Jean-Paul Sartre

But it is the same with man as with the tree. The more he seeks to rise into the heights and light, the more vigorously do his roots struggle earthword, downword, into the dark, the deep – into evil.

Friedrich Nietzche

When you have done everything that could possibly be done, the only thing that remains is what you could still do only if you knew it.

Carl Jung