10 What should have been the effect of these wonders? Should the Creator have been blasphemed? Or worshipped rather? And so far I have said noticing of the unseen works of His wisdom. Observe, I pray you, the spring, and the flowers of every kind in all their likeness still diverse one from another; the deepest crimson of the rose, and the purest whiteness of the lily: for these spring from the same rain and the same earth, and who makes them to differ? Who fashions them? Observe, pray, the exact care: from the one substance of the tree there is part for shelter, and part for various fruits: and the Artificer is One. Of the same vine part is for burning, and part for shoots, and part for leaves, and part for tendrils, and part for clusters.
Admire also the great thickness of the knots which run round the reed, as the Artificer has made them. From one and the same earth come forth creeping things, and wild beasts, and cattle, and trees, and food; and gold, and silver, and brass, and iron, and stone. The nature of the waters is but one, yet from it comes the substance of fishes and of birds; whereby as the former swim in the waters, so the birds fly in the air.
Source: Catechetical Lectures (New Advent)