The work of Samuel Beckett is moving, subtle. Negativism, blackness, pessimism, these are frequently used to describe Beckett's writing. But...never narcissism, as with Sartre. Never...Umm,"hostile." Sartre there, too. Here is Karl Ragnar Gierow in his Nobel presentation on Beckett:

"What does the negative offer us, once it has been developed?  A positive, a brighter image in which black itself is transformed into brilliance, in which the areas in the deepest shadow are precisely those that reflect the source of light.  Its name is compassion."

Compassion.

"For what is without worth can never be debased.  Proof of the degradation of man--and we have been its witnesses as perhaps no generation before us has been--does not exist if one denies all value to man.  But the more the evidence makes us suffer, the deeper the recognition of man's true worth. This is the source of inner purification, the life-giving strength in spite of everything that springs from Beckett's black pessimism.  It embraces a love for mankind the more compassionate because it has known the extremes of revulsion, a despair that must reach the farthest limit of suffering in order to learn that that frontier vanishes when compassion disappears." (emphasis in original)

Can't degrade the worthless. True, that. Subtle.