Singer warns not to consider moral positions as "rules" as stated in this essay, but guidelines. You can't be 100% perfect at all times (as Franklin discovered).
In addidition, moral views are mutable. My friend has been vegetarian for 10 years and on account of some book about a farm in Virginia he thinks maybe eating meat is all right. My argument against his decision may have some weight, but ultimately virtue and ethics are an individual's business.
In addidition, moral views are mutable. My friend has been vegetarian for 10 years and on account of some book about a farm in Virginia he thinks maybe eating meat is all right. My argument against his decision may have some weight, but ultimately virtue and ethics are an individual's business.