I usually don't care much for sappy quotes, but I always need to be reminded of this. Coveting is ugly, and, if left unattended, grows into jealousy. And jealousy can grossly interfere with God's plan for your life, but, even worse, it can interfere with His plan for someone else's life.
"For You formed my inward parts; You knitted me together in my mother's womb. I PRAISE YOU FOR I AM FEARFULLY AND WONDERFULLY MADE. Wonderful are Your works; my soul knows it very well," Psalm 139:13-15.