“Toothache, seeing etc. I only know from myself & not from the other.”
     “I never know that he has toothache, I only know when I have it.”
     “I can only believe that he has it, that he has what I have.”
     “Has ‘toothache’ then a different meaning in my case & in his?”
     “Isn't it possible that everybody should have toothache but without expressing it?”
     “If it is possible that sometimes one can have ‘toothache’ without expressing it, it is possible that always this should be so.”
     “If my personal experience is all I know how can I even assume that there is any other besides?”
     “Does ‘toothache’ in the other mean behaviour?”
     “I only know what I mean by ‘toothache’.”
     “I was taught the word ‘toothache’ in connection with my behaviour but interpreted it to mean my pain.”
     “Only my ‘toothache’ is real toothache”.
     “What justifies me in saying that the other has toothache is his behaviour, what justifies me saying that I have is the experience of toothache.”
     “Is there only the expression of toothache & not the toothache?”

     “I know what it means to say that the other has ‘toothache’ even if I have no means to find out whether he has.”