"A long sea implies an uniform and steady motion of long and extensive waves; on the contrary, a short sea is when they run irregularly, broken, and interrupted; so as frequently to burst over a vessel's side or quarter"

This quote by William Falconer is describing the motion of the sea. A long sea is when the waves are consistent and steady, indicating they are of a constant size and frequency. On the other hand, a brief sea is when the waves are irregular, broken, and cut off. This type of sea is more dangerous for vessels, as the waves can be unforeseeable and can break over the side or quarter of the boat. This quote is a tip of the power of the sea and how it can be unforeseeable and dangerous. It is important to be knowledgeable about the sea conditions when sailing, as it can be the difference between a safe journey and a disaster.