Love thy neighbor (n.) is an attempt to defend against human instinctual aggressiveness which is impossible to fulfill since anyone who follows such a precept in present-day civilization only puts himself at a disadvantage vis-a-vis the person who disregards it.
Love thy neighbor (n.) heard as if for the first time provokes only bewilderment: why should we, what good will it do — and how could it possibly be done?
Love thy neighbor (n.) would be acceptable if it ran: love thy neighbour as thy neighbour loves thee.
Love thy neighbor (n.) becomes a case of Credo quia absurdum when the neighbour is unworthy and your enemy.
Love thy neighbor (n.) is justified only by this: nothing else runs so strongly counter to the original nature of man.
Love thy neighbor (n.) is a commandment no one can fulfil: so vast an inflation of love only cheapens it and solves nothing.