A college student was in a philosophy class which had a discussion about God's existence. The professor presented the following logic:
"Has anyone in this class heard God?" Nobody spoke. " Has anyone in this class touched God?" Again, nobody spoke. "Has anyone in this class seen God?" When nobody spoke for the third time, he simply stated, "Then there is no God."
One student thought for a second, and then asked for permission to reply. Curious to hear this bold students response, the professor granted it, and the student stood up and asked the following questions of his classmates:
"Has anyone is this class heard our professor's brain?" Silence. "Has anyone is this class touched our professors brain?" Absolute silence. "Has anyone in this class seen our professor's brain?" When nobody in the class dared to speack the student concluded, "Then according to our professor's logic, it must be true our professor has no brain!"
(...The student recieved an "A" in the class.)