'All have their worth,' said Yavanna, 'and each contributes to the worth of the others. But the kelvar can flee or defend themselves, whereas the olvar that grow cannot. And among these I hold trees dear. Long in the growing, swift shall they be in the felling, and unless they pay toll with fruit upon bough little mourned in their passing. So I see in my thought. Would that the trees might speak on behalf of all things that have roots, and punish those that wrong them!'