One daughter helps to marry the other, [129]
One deceit brings on another, [61]
One devil does not make hell, [130]
One devil drives out another, [130]
One devil knows another, [130]
One does it for love, another for honour, a third for money, [304]
One does not always hit what one aims at, [59]
One dog growls to see another go into the kitchen, [137]
One door never shuts but another opens, [109], [114]
One enemy is too many (or too much), and a hundred friends are too few (or not enough), [98], [130], [142], [364]