nine o'clock
He insisted that the cheese never had done him any harm , nor would now . I had no course left me but to hold my tongue ; and he did as he pleased . The consequence was what might have been anticipated -- a restless night , succeeded by a day of memorable illness . The next morning all went on as usual , till nine o'clock , when Kant , who was then leaning on his sister 's arm , suddenly fell senseless to the ground . A messenger was immediately despatched for me ; and I hurried down to his house , where I found him lying in his bed , which had now been removed into his study , speechless and insensible . I had already summoned his physician ; but , before he arrived , nature put forth efforts which brought Kant a little to himself . In about an hour he opened his eyes , and continued to mutter unintelligibly till towards the evening , when he rallied a little , and began to talk rationally .