"Physics"
One day our physics professor was discussing a particularly complicated concept. A pre-med student rudely interrupted to ask "Why do we have to learn this stuff?"

"To save lives." the professor responded quickly and continued the lecture.

A few minutes later, the same student spoke up again. "So, how does physics save lives?" he persisted.

"It keeps the ignoramuses out of medical school," replied the professor.

"Tough Exam"
An eccentric philosophy professor gave a one question final exam after a semester dealing with a broad array of topics.

The class was already seated and ready to go when the professor picked up his chair, plopped it on his desk and wrote on the board: "Using everything we have learned this semester, prove that this chair does not exist."

Fingers flew, erasers erased, notebooks were filled in furious fashion. Some students wrote over 30 pages in one hour attempting to refute the existence of the chair. One member of the class however, was up and finished in less than a minute.

Weeks later when the grades were posted, the rest of the group wondered how he could have gotten an A when he had barely written anything at all. His answer consisted of two words: "What chair?"

College Seniors Vs. Freshmen
FRESHMEN are never in bed past noon.
SENIORS are never out of bed before noon.

FRESHMEN read the syllabus to find out what classes they can cut.
SENIORS read the syllabus to find out what classes they need to attend.

FRESHMEN bring a can of soda into a lecture hall.
SENIORS bring a jumbo hoagie and six-pack of Mtn. Dew into recitation class.

FRESHMEN call the professor "Professor."
SENIORS call the professor "Bob."

FRESHMEN would walk ten miles to get to class.
SENIORS drive to class if it's further than three blocks away.

FRESHMEN memorize the course material to get a good grade.
SENIORS memorize the professor's habits to get a good grade.

FRESHMEN know a book-full of useless trivia about the university.
SENIORS know where the next class is. Maybe...

FRESHMEN show up at a morning exam clean, perky, and fed.
SENIORS show up at a morning exam in sweats with a cap on and box of pop tarts in hand.

FRESHMEN have to ask where the computer labs are.
SENIORS have their 'own' personal workstation.

FRESHMEN worry about the last freshman composition essay.
SENIORS worry about the last GRE essay.

FRESHMEN line up for an hour to buy his textbooks in the first week.
SENIORS start to think about buying textbooks in October. Maybe...

FRESHMEN look forward to first classes of the year.
SENIORS look forward to first beer party of the year.

FRESHMEN are proud of their A+ on Calculus I midterm.
SENIORS are proud of not-quite-failing their Complex Analysis midterm.

FRESHMEN call their girlfriends back home every other night.
SENIORS call Domino's every other night.

FRESHMEN take meticulous four-color notes in class.
SENIORS occasionally stay awake for all of class.