If my eyes are shut--I am speaking now of the eyes as experienced, as felt or perceived, as given in sensation--I never say; "I see my desk," no matter how vivid the image of the object.

Those who believe in "second sight" sometimes talk of seeing things not in this setting, but the very name they give to the supposed experience indicates that there is something abnormal about it.

No one thinks it remarkable that I see the desk before which I perceive myself to be sitting with open eyes.

Every one would think it strange if I could see and describe the table in the next room, now shut away from me.

When a man thinks he hears his name pronounced, and, turning his head, seeks in vain for the speaker, he sets his experience down as a hallucination.