Because a contract of sale and a contract to sell resemble other contracts，the remedies available to both sides for nonperformance are similar to the usual remedies for breach of contract

　　——You and the Law，1980，pp.224-5

　　谈“结婚”、“订婚”而竟谈到“买卖合同”了，似乎有点不像话。但是读者一定很明白，我们是要从结构上用“contract of sale'”与“contract to sell"之各不相同作为旁证（corroborative evidence），借以论证"contract to marry”与"contract of marriage"（包括其变体在内）之迥然有异—前者为“订婚”，后者乃“结婚”。