YES! hope may with my strong desire keep pace,
And I be undeluded, unbetrayed:
For if of our affections none find grace
In sight of Heaven, then wherefore hath God made
The world which we inhabit? Better plea
Love cannot have, than that in loving thee
Glory to that eternal peace is paid,
Who such divinity to thee imparts
As hallows and makes pure all gentle hearts.
His hope is treacherous only whose love dies
With beauty, which is varying every hour;
But, in chaste hearts uninfluenced by the power
Of outward change, there blooms a deathless flower,
That breathes on earth the air of paradise.

Michelangelo Buonarroti

http://www.poemhunter.com/poem/love-s-justification/