Table reproduced from Lakoff & N��ez: Where Mathematics Comes From

"Conceptual metaphors do not just map preexisting elements of the source domain onto preexisting elements of the target domain. They can also introduce new elements into the target domain. Consider, for example, the concept of love. There is a common metaphor in the contemporary Western world in which Love is a Partnership. Here is the mapping.

LOVE IS A PARTNERSHIP
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Source Domain Target Domain
BUSINESS LOVE
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Partners -----------> Lovers

Partnership -----------> Love relationship

Wealth -----------> Well-being

Profits from the business -----------> "Profits" from the love relationship

Work for the business -----------> "Work" put into the relationship

Sharing of work for the business ------> Sharing of "work" put into the
relationship

Sharing of profits from the business ---> Sharing of "profits" from the
relationship