Our culture says that feelings of love are the basis for actions of love. And of course that can be true. But it is truer to say that actions of love can lead consistently to feelings of love. Love between two people must not, in the end, be identified simply with emotion or merely with dutiful action. Married love is a symbiotic, complex mixture of both. Having said this, it is important to observe that of the two – emotion and action – it is the latter that we have the most control over. It is the action of love that we can promise to maintain every day.
– Tim Keller