Jean-Paul Sartre Quote
We will freedom for freedom's sake, in and through particular circumstances. And in thus willing freedom, we discover that it depends entirely upon the freedom of others and that the freedom of others depends upon our own. Obviously, freedom as the definition of a man does not depend upon others, but as soon as there is a commitment, I am obliged to will the liberty of others at the same time as my own. I cannot make liberty my aim unless I make that of others equally my aim.
Existentialism Is a Humanism, lecture (1946)
Existentialism is a Humanism, Jean-Paul Sarte 1946[marxists.org]