This is one of the standard things said to console someone who has just come out of a relationship, whether through a breakup or rejection. The sea stands for the whole world of potential partners, and the point being made is that losing one person does not mean losing the chance of finding another. It is usually meant kindly, as reassurance that the single person still has plenty of options for the future, though it can also sound a little glib when offered too quickly after a painful split.
What’s the origin of the phrase ‘there’s plenty more fish in the sea’?
The underlying proverb is genuinely old, though its wording has shifted over time. The Dictionary of Proverbs traces it as early as 1573, in a form that spoke of a good store of fish in the main sea, carrying the same idea but not yet the familiar modern phrasing.
By 1862 the proverb had settled into recognisably modern phrasing, and was established enough in everyday speech to supply the title of a popular American song, “There Are Plenty of Fish in the Sea”, published the following year. The music for that song was written by Stephen Foster, but the words, including the title phrase itself, were written by his lyricist George Cooper. The song’s popularity helped cement the saying in its current form, fish standing in for romantic prospects and the sea for the limitless supply of them.
The image has stayed useful because it is so simple: a sea is vast, and no single fish taken from it makes much difference to the stock remaining. The same idea survives in the related saying that there are plenty of pebbles on the beach, which makes the same consoling point with a different picture. Both versions work by treating one disappointment as a small loss set against an enormous range of alternatives still untried.