The august university president sighed heavily as the pressures of his position weighed heavily upon his mind. His most recent trial came as a result of the budget submitted by the physics department.
"Now see here," said he, "Why is it that physics must have a budget increase each and every year?"
"Because of the expensive equipment our field requires" replies the head of the department.
"Well," said the president, "The department of mathematics requires nothing of me but money for paper, pencils, and erasers."
Pondering this statement for a moment he then added,
"Philosophy is better still. They don't even ask for erasers ..."