Samuel Beckett had largest contribution in "Absurd Theater". His play "Waiting for Godot" also belonged to the same category and was called an absurd play.
Themes of "Waiting for Godot": Existentialism, nothingness, vitality of hope, sufferings, absurdity, human race, relationships, religion, waiting, ignorance
"Love and Marriage" is common theme of Austen's novels. "Pride and Prejudice" is a clear representation of theme of "love and marriage".