From Aurora Leigh:
To have our books
Appraised by love, associated with love,
While we sit loveless! is it hard, you think?
At least 'tis mournful. Fame, indeed, 'twas said,
Means simply love. It was a man said that.
And then there's love and love: the love of all
(To risk, in turn, a woman's paradox,)
Is but a small thing to the love of one.
You bid a hungry child be satisfied
With a heritage of many corn-fields: nay,
He says he's hungry,–he would rather have
That little barley-cake you keep from him
While reckoning up his harvests. So with us;
(Here, Romney, too, we fail to generalise!)
I wonder what the meaning of the phrase in bold could be. It must be an allusion to some paradox or some story, or some saying, mustn't it?