I did an extensive search on imdb, google, and Alice's Porn Palace and I believe the quote is from a classic movie called
Police Academy 11: Vatican Patrol.
Seriously, the "grasshopper" bit is from "Kung Fu". It has been used so much that it has become verbal iconograpy.
Here is the very line tat started it all:
Master Po: [after easily defeating the boy in combat] Ha ha, never assume because a man has no eyes he cannot see. Close your eyes. What do you hear?
Young Caine: I hear the water, I hear the birds.
Master Po: Do you hear your own heartbeat?
Young Caine: No.
Master Po: Do you hear the grasshopper that is at your feet?
Young Caine: [looking down and seeing the insect] Old man, how is it that you hear these things?
Master Po: Young man, how is it that you do not?
From that point forward Young Caine was referred to as "Grasshopper".
although I always thought it was used in the Karate kid.. it's was qouted in the Kong fu :
1972 made for television movie (the pilot for the subsequent series) starring David Carradine. Carradine playes Caine, a young Chinese-American Shaolin monk living in 19th century China. After avenging the death of his teacher, he becomes a wanted man in China. Fleeing to America, he works on the railroad in the American West and helps the railroad workers.
Perhaps the most famous sequence in the film is the following (taken from the Internet Movie Database):
Master Po: (after easily defeating the boy in combat) Ha ha, never assume because a man has no eyes he cannot see. Close your eyes. What do you hear?
Young Caine: I hear the water, I hear the birds.
Master Po: Do you hear your own heartbeat?
Young Caine: No.
Master Po: Do you hear the grasshopper that is at your feet?
Young Caine: (looking down and seeing the insect) Old man, how is it that you hear these things?
Master Po: Young man, how is it that you do not?
Hereafter, Master Po referred to his young pupil as grasshopper.
