Theaetetus: I dare say, Socrates, I do not know what to answer, because thou hast taken earlier to have said. In reality, however, I can not deny that, in madness or in dreams, we have false opinions, while some think they are gods and that others are in their sleep they wings and they fly
SOCRATES: Dost thou not to the controversy about this, especially on the dream and the day before?
Theaetetus: What controversy?
Socrates: A controversy that you have, I think, intended to raise more than once by people who asked what could be done convincing response to that would point-blank question: do we sleep and we dream what we think or are we awake and converse we really together?
Theaetetus: It is embarrassing, Socrates, to find evidence to recognize it, because everything is the same and exactly in the two states. Take, for example, the conversation we just had: nothing prevents us from believing that we would also like sleeping, dreaming and when, we believe tell of dreams, the resemblance is remarkable with what happens to the wakefulness.
Socrates: So you see that it is not difficult to raise a controversy on this, then you wonder even if we are awake or whether we dream. Moreover, as the time when we sleep is equal to that which we are awake, in each of these two states supports our core ideas that she has successively are absolutely true, so that during half time, this is one that we hold true and the other half, the other, and we affirm each other and with the same assurance
Theaetetus: That is certain.
SOCRATES: Do we not say the same disease and madness, except for duration, which is more equal?
Theaetetus: Yes.
SOCRATES: But what? Is this the length and the short time we will define the truth?
Theaetetus: It would be ridiculous in many ways.
SOCRATES: But can you do see some other clear indication which of these beliefs are true?
Theaetetus: I do not think so.
