4 In all this she is but giving effect to those principles which Christ Himself established in the Church He founded. When He said "I am the way, and the truth, and the life," (2) "I am the light of the world," (3) it was doubtless man's eternal salvation that was uppermost in His mind, but He showed His concern for the material welfare of His people when, seeing the hungry crowd of His followers, He was moved to exclaim: "I have compassion on the multitude." (4) And these were no empty words of our divine Redeemer. Time and again He proved them by His actions, as when He miraculously multiplied bread to alleviate the hunger of the crowds.
Source: Mater et Magistra (Vatican.va)