School and Fireside (1898) pg 45, 59 https://archive.org/stream/schoolfireside00maesrich#page/58/mode/2up
Karl G. Maeser: Man
Karl G. Maeser was prominent Utah educator and a member of The Church of Jesus Christ of Latter-day Saints. Explore interesting quotes on man.“No man shall be more exacting of me or my conduct than I am of myself.”
Sentence-Sermons from Brigham Young University Quarterly quoted in The Latter-Day Saints' Millenial Star, Vol. 70 https://books.google.com/books?id=eItJAAAAYAAJ&pg=PA452&lpg=PA452&dq=He+that+cheats+another+is+a+knave;+but+he+that+cheats+himself+is+a+fool.&source=bl&ots=WBAQiPjQX6&sig=WLEdKN2_kXPXj8jZALKCp2dguaQ&hl=en&sa=X&ved=0ahUKEwjXmNeF_7HMAhUH42MKHdySDgsQ6AEILzAE#v=onepage&q=fool&f=false
Written on a chalk board during his Nov. 9th, 1900 visit to Maeser Elementary School in Provo, Utah; Maeser Chalkboards Preserved http://education.byu.edu/news/2005/01/01/maeser-chalkboards-preserved|date=1