Francis of Assisi
If you have men who will exclude any of God's creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men.
Praised be You, my Lord, with all Your creatures, especially Sir Brother Sun, Who is the day through whom You give us light. And he is beautiful and radiant with great splendour; of You, Most High, he bears the likeness.
The Father willed that his blessed and glorious Son, whom he gave to us and who was born for us, should through his own blood offer himself as a sacrificial victim on the altar of the cross. This was to be done not for himself through whom all things were made, but for our sins.
We should never desire to be over others. Instead, we ought to be servants who are submissive to every human being for God's sake.
Men lose all the material things they leave behind them in this world, but they carry with them the reward of their charity and the alms they give. For these, they will receive from the Lord the reward and recompense they deserve.
Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible.