Where possible Paul avoids quoting the teaching of Jesus, in fact even mentioning it. If we had to rely on Paul, we should not know that Jesus taught in parables, had delivered the sermon on the mount, and had taught His disciples the 'Our Father.' Even where they are specially relevant, Paul passes over the words of the Lord.
Albert SchweitzerWhen man learns to respect even the smallest being of creation...nobody has to teach him to love his fellow man. Compassion for animals is intimately connected with goodness of character, and it may be confidently asserted that he who is cruel to animals cannot be a good man.
Albert SchweitzerThe friend of nature is the man who feels himself inwardly united with everything that lives in nature, who shares in the fate of all creatures, helps them when he can in their pain and need, and as far as possible avoids injuring or taking life.
Albert Schweitzer