these = this

In reality, and for the existentialist, there is no love apart from the deeds of love; no potentiality of love other than that which is manifested in loving; there is no genius other than that which is expressed in works of art. The genius of Proust is the totality of the works of Proust; the genius of Racine is the series of his tragedies, outside of which there is nothing. Why should we attribute to Racine the capacity to write yet another tragedy when that is precisely what he did not write? In life, a man commits himself, draws his own portrait and there is nothing but that portrait. No doubt this thought may seem comfortless to one who has not made a success of his life. On the other hand, it puts everyone in a position to understand that reality alone is reliable; that dreams, expectations and hopes serve to define a man only as deceptive dreams, abortive hopes, expectations unfulfilled; that is to say, they define him negatively, not positively. Nevertheless, when one says, ‘You are nothing else but what you live,’ it does not imply that an artist is to be judged solely by his works of art, for a thousand other things contribute no less to his definition as a man. What we mean to say is that a man is no other than a series of undertakings, that he is the sum, the organization, the set of relations that constitute these undertakings
— Sartre