Thus personal experience in other matters observation, and theory, alike teach us that the work of benevolence may not be left to the impulses of natural feeling—to the influence of lectures and appeals, or casual stimulants. It must be planted in principle, and issue in regular contributions, like the tree of life yielding her fruit every month, if we would have the blessing of many ready to perish come upon us. Those who depend on intermittent springs are liable to suffer thirst.
IV. From the deep-seated depravity of the human heart. Depravity is supreme selfishness. This, in unregenerate men, is the governing principle. Quick-sighted, ever on the alert, and lying, as it does, at the foundation of the active powers, it becomes the propeller of the mind. It leads to a series, and thus substantially to a system, of actions. They may not always be rational; yet, as they spring from a fixed principle, and proceed in an uninterrupted current, they may properly be termed systematic. Hence the natural man feels a constant pressure of motives to conduct pleasing to himself; and is thereby borne away on the maddening torrent of self-gratification. There must be a counter-current; billow must battle with billow. The antagonist principle demanded is benevolence; and antagonist principles, coming in collision, must press with equal force, or one gradually gaining upon the other, will eventually secure the victory. The combatant, who is for a moment off his guard, or ceases to struggle, falls. As selfishness is always awake, benevolence must never