I am sure--since you are too strait-laced to be an Epicurean--that you got it from Dr Doddridge.

               
"'Live, while you live,' the epicure would say.
'And seize the pleasures of the present day.'
'Live, while you live,' the sacred preacher cries,
'And give to God each moment as it flies.'
Lord, in my views let each united be;
I live in pleasure, when I live to thee."