Two principles in human nature reign;
Self-love, to urge, and reason, to restrain;
Nor this a good, nor that a bad we call, 55
Each works its end, to move or govern all:
And to their proper operation still,
Ascribe all good; to their improper, ill.
Self-love, the spring of motion, acts the soul;
Reason's comparing balance rules the whole. 60
Man, but for that, no action could attend,
And but for this, were active to no end:
Fix'd like a plant on his peculiar spot,
To draw nutrition, propagate, and rot;
Or, meteor-like, flame lawless through the void, 65
Destroying others, by himself destroy'd.
Most strength the moving principle requires;
Active its task, it prompts, impels, inspires.
Sedate and quiet the comparing lies,
Form'd but to check, delib'rate, and advise. 70
Self-love still stronger, as its objects nigh;
Reason's at distance, and in prospect lie:
That sees immediate good by present sense;
Reason, the future and the consequence.
Thicker than arguments, temptations throng, 75
At best more watchful this, but that more strong.
The action of the stronger to suspend,
Reason still use, to reason still attend.
Attention, habit and experience gains;
Each strengthens reason, and self-love restrains. 80
Let
