Jean-Paul Sartre said this quote

“ If existence really does precede essence, there is no explaining things away by reference to a fixed and given human nature, In other words, there is no determinism, man is free, man is freedom. On the other hand, if God does not exist, we find no values or commands to turn to which legitimize our conduct. So, in the bright realm of values, we have no excuses behind us, no justification before us. We are alone with no excuses.This is the idea I shall try to convey when I say that man is condemned to be free. Condemned, because he did not create himself, yet in other respects is free; because once thrown into the world, he is responsible for everything he does. ”