Envy.

When Satan sends—to vex the mind of man And urge him on to meanness and to wrong— His satellites, there is not one that can Acquit itself like envy. Not so strong As lust, so quick as fear, so big as hate— A pigmy thing, the twin of sordid greed— Its work all noble things to underrate, Decry fair face, fair form, fair thought, fair deed, A sneer it has for what is highest, best, For love's soft voice, and virtue's robe of white; Truth is not true, and pity is not kind, A great task done is but a pastime light. Tormented and tormenting is the mind That grants to envy room to make its nest.