Ghosts

"The artist alone sees spirits. But after he has told of their appearing to him, everybody sees them." - Johann Wolfgang von Goethe

"You see many stars at night in the sky but find them not when the sun rises; can you say that there are no stars in the heaven of day? So, O man! because you behold not God in the days of your ignorance, say not that there is no God." - Voltaire