"How much do babies cost?" said he
The other night upon my knee;
And then I said: "They cost a lot;
A lot of watching by a cot,
A lot of sleepless hours and care,
A lot of heart-ache and despair,
A lot of fear and trying dread,
And sometimes many tears are shed
In payment for our babies small,
But every one is worth it all.

What a Baby Costs, stanza 1, p. 19. - A Heap o' Livin' (1916)