Commodities are grouped into one of 18 classes from a low of class 50 to a high of class 500 based on an evaluation of four transportation characteristics: density, stowability, handling and liability.
Patience implies suffering, enduring or waiting, as a determination of the will and not simply under necessity. As such it is an essential Christian virtue to the exercise of which there are many exhortations.
Patience is one of the humble, workaday virtues; but it is, in a real sense, the root and guardian of all virtues, not causing them, but removing obstacles to their operation. Do away with patience and the gates are open for a flood of discontent and sin. (Comp. to Summa, III, 394)