Like as, to make our appetite more keen, 
 With eager compounds we our palate urge; 
 As, to prevent our maladies unseen, 
 We sicken to shun sickness when we purge - 
 
 Even so, being full of your ne'er-cloying sweetness, 
 To bitter sauces did I frame my feeding; 
 And, sick of welfare, found a kind of meetness 
 To be diseased ere that there was true needing. 
 
 Thus policy in love, t'anticipate 
 The ills that were not, grew to faults assur'd, 
 And brought to medicine a healthful state 
 Which, rank of goodness, would by ill be cur'd. 
 
 But thence I learn and find the lesson true, 
 Drugs poison him that so fell sick of you. 

            (Paraphrase)