I can't go on. I'll go on.
Vladimir: Did I ever leave you? Estragon: You let me go.
What do I know of man's destiny? I could tell you more about radishes.
Where am I, I don't know, I'll never know, in the silence, in the silence you don't know, you must go on, I can't go on, I'll go on.
All I say cancels out, I’ll have said nothing.
How time flies when one has fun!