Quote by Ernest Hemingway
It wasn't by accident that the Gettysburg address was so short. The laws of prose writing are as immutable as those of flight, of mathematics, of physics.
Summary
This quote suggests that the brevity of the Gettysburg address was intentional and not accidental. It implies that the laws governing prose writing are comparable to the inviolable laws of flight, mathematics, and physics. This implies that there are fundamental principles and rules governing effective writing that should be followed in order to achieve success and impact in conveying a message.