Sangster also amongst the Hedonists?

Methodist W E Sangster (1900-1960) wrote book on Christian holiness called The Pure in Heart: A Study in Christian Sancity (1955; London: The Epworth Press). I was glad to find that the important insights of John Piper and his 'Christian Hedonism' are also reflected in the follow practical illustration: 

"That pure a altruism is a moral absurdity, as grave, though by no means as common, as pure egotism, can be shown in an illustration. Here are two men, neither of whom falls in love but each of whom marries a nurse: one is a pure egotist, and the other a pure altruist. The first one marries the nurse, because, knowing his own family health record, he fears that some day he will be an invalid and he wants her tied to him that he may benefit by her professional skill. 'What a bounder!' the average man would say. 'What a low motive for getting wed!' But look at the pure altruist! He marries the girl, not because he loves her (there is no taint of self about  him): he marries her because he thinks nobody else will, and life will be very lonely for her as time goes by, and the day comes when she can nurse no more.

​Moreover, he thinks that living with her will give him many opportunities for self-abnegation.... Will that please the girl? If she knew his real heart, would she wed? Is it not obvious that both fail? - and does not that last illustration give us the clue that we are seeking? There is happiness for the girl only in the knowledge that, in getting the man she loves, she is  giving  happiness. You cannot separate yourself from others. God make us members one of another and to take ourselves out of the family either by the high road of 'pure' altruism, or the low road of sheer egotism, lands us in absurdity at the end"   (page 230)

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