The greatest burdens are not the gainfullest.

A task can demand substantial effort without offering a correspondingly large reward. The weight of an undertaking is not a reliable measure of what it will yield.

The proverb encourages a practical comparison of cost and benefit before accepting a difficult obligation. An easier course may sometimes accomplish more for the effort spent.

Use the proverb when someone assumes that a more demanding job or obligation must also be more worthwhile. It offers a concise reason to consider the likely return alongside the effort required.