is the objective difference between these two statements?
cannot know the real subjective contents of another individual.
You may know the truth but your assumption is based upon imagination;
on the other hand, you can (once awake) know the contents of your
own subjectivity and, therefore, accurately relate to a truth about
a Work point of view, one of the signs of sleep is when an individual
assumes they know the truth about someone else. In other words,
you have to be awake to know that you know nothing.