The Infant System or Developing the Intellectual and Moral Powers of All Children from One to Seven Years of Age (1852)

"In again presenting this volume to the world, I trust I feel thankful to God for the favour with which the Infant System has been received, and for all the aid I have enjoyed in my course of labour. Had the measures I originated for the development of the infant mind, and the improvement of the moral character, been sanctioned at first, as many now think they should have been, their progress would, undoubtedly, have been far greater; but when I consider what has been accomplished under the divine benediction, and amid greater difficulties than ever beset the path of an individual similarly occupied, I know not how to express the gratitude of which I am conscious..."