Lives of the Most Eminent Painters, Sculptors and Architects Vol 1-Giorgio Vasari

The poetry of childhood is full of attractiveness to the artist, and many and varied are the forms in which he interprets it. The Christ-child has been his highest ideal. All that human imagination could conceive of innocence and purity and divine loveliness has been shown forth in the delineation of the Babe of Bethlehem. The influence of such art has made itself felt upon all child pictures. It matters not whether the subject be a prince or a street-waif; the true artist sees in him something which is lovable and winning, and transfers it to his canvas for our lasting pleasure. (Summary from the Preface of Child-life in Art)