“He threw on a cardigan and some track pants and tried to say a goodbye that meant come back again.”

“... He was particularly disgruntled to see what he had taken for a bundle of old rags on the tracks outside was a human body. He did not say "Not again" (what he said was "Shit on this"), but "Not again" was what he meant.”

“Jenkins tried to say goodbye, but he could not say goodbye. If he could only weep, he thought, but robots could not weep.”

“Too many years fighting back tears. Why can't the past just die? Wishing you were somehow here again, knowing we must say goodbye. Try to forgive, teach me to live, give me the strength to try! No more memories, no more silent tears, no more gazing across the wasted years. Help me say goodbye.”

“Goodbye, master, my dear! Forgive your Sam. He'll come back to this spot when the job's done - if he manages it. And then he'll not leave you again. Rest you quiet till I come; and may no foul creature come anigh you! And if the Lady could hear me and give me one wish, I would wish to come back and find you again. Good bye!”

“never to say goodbye coz it kills the hope of meeting again.”