Here you will find the Poem The Indifferent of poet Francis Beaumont
Never more will I protest, To love a woman but in jest: For as they cannot be true, So, to give each man his due, When the wooing fit is past Their affection cannot last. Therefore, if I chance to meet With a mistress fair and sweet, She my service shall obtain, Loving her for love again: Thus much liberty I crave, Not to be a constant slave. But when we have tried each other, If she better like another, Let her quickly change for me, Then to change am I as free. He or she that loves too long Sell their freedom for a song.