This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
... Concern for the welfare of those one loves is a rational part of one’s selfish interests. If a man who is passionately in love with his wife spends a fortune to cure her of a dangerous illnes s, it would be absurd to claim that he does it as a “sacrifice” for her sake, not his own, and that it makes no difference to him, personally and selfishly, whether she lives or dies.

Any action that a man undertakes for the benefit of those he loves is not a sacrifice if, in the hierarchy of his values, in the total context of the choices open to him, it achieves tha...
read full book block explorer