Galatians 5:14

-You would go back to bondage; there is a servitude which constitutes liberty. You desire to be under the law; there is a law the law of love to which ye will do well to submit yourselves; for all the requirements of the law are met by the fulfilment of one precept Thou shalt love thy neighbour as thyself." Similarly in Romans 13:8-10, -He that loveth another hath fulfilled the law … Whatever other commandments there are, all are summed up in this precept, Thou shalt love thy neighbour as thyself … love is the fulfilling of the law."

thy neighbour This term in the original precept (Leviticus 19:18) had reference only to the Jewish people, but our Lord enlarged its scope so as to include everyone whom it is in our power to benefit or injure, i.e. all men. It is so explained in the Church Catechism -My duty towards my neighbour is to love him as myself, to do unto all men&c."