Love you seek for, presupposes

   Summer heat and sunny glow,

Tell me, do you find moss-roses

   Budding, blooming in the snow?

Snow might kill the rose-tree's root~

Shake it quickly from your foot,
   Lest it harm you as you go.

From the ivy where it dapples

   A grey ruin, stone by stone,
Do you look for grapes or apples,

   Or for sad green leaves alone?

Pluck the leaves off, two or three~

Keep them for morality

   When you shall be safe and gone.

~ Elizabeth Barrett Browning, Sonnets From the Portuguese and Other Love Poems.