There are more things

in heaven and earth...Than are dreamt of in your philosiphy.

Explanation

In Act I Scene 5 of William Shakespeare's Hamlet, Hamlet stands on the ramparts of Elsinor castle as he receives from the Ghost the events of his father's murder. Horatio and Marcellus rush in to protect Hamlet, who is their lord. After Hamlet gives a summary of the report he received from the Ghost, he draws his sword and tells Horatio and Marcellus to swear upon it. Hamlet says this to suggest that Horatio broaden the views of his mind. Horatio is portrayed as the rational man in the group, one who does not readily believe in the Supernatural. The serious and grave tone adds a dark dimension to the story, as well as shows the stock the people in Shakespeare's day put in higher powers. The quote means that while man might know many things, and think himself clever, in reality he knows nothing. In deeper analysis, it shows that supernatural forces are active in everyday life, forces that logic or rationality cannot explain.