ARTHUR: Speaking on behalf of all animals..... you humans freak us out when you mimic us. GRAMP
ARTHUR: You see a bird fly, and BAM! ...You invent the airplane. You see a fish swim, and BAM! ...You invent the submarine. You see a cheetah race by and BAM! ...You invent the motorcycle. ...Just quit it already!
ARTHUR (dazed): If you HAVE to mimic something, mimic a SEA SPONGE.
GRAMP: Why? What does a sea sponge do? ARTHUR: It minds its own dang business! That's what!