Why was the physicist studying gravitational fields handsomer than the one studying electrical fields?
Electrical Fields may be repulsive at times, but Gravitational Fields are forever attractive.
What is a corn's favorite song?
Corn fields forever.
Don't tell secrets in corn fields.
Too many ears around.
The farmer called his prize cow a bull-dozer because she was always sound asleep in the fields.
"As has often been noted, physics is to math what lovemaking is to masturbation."

Student : "So you're saying both fields are good, but without an attempt to understand the universe, the search for deeper mathematical truth is empty?"

Professor : "I'm saying you'll spend most of undergrad doing math."