Third Annual Message to Congress, 7 Dec. 1903. "No one is above the law" appears in the U.S. Supreme Court case Mississippi v. Johnson (1867) (arguments of counsel). Even earlier, "no officer ... is above the law" is found in a Kentucky Supreme Court case, Johnston v. Commonwealth (1809).
"The Progress of Fifty Years". Last public speech, to the Congress of Women at the Woman's Building of the World's Columbian Exposition (World's Fair), Chicago, Illinois, 1893.
Elizabeth Cady Stanton, Susan B. Anthony, Harriot Stanton Blatch, Matilda Gage (2017). “HISTORY OF WOMEN’S SUFFRAGE Trilogy – Part 1 (Illustrated): The Origin of the Movement - Lives and Battles of Pioneer Suffragists (Including Letters, Articles, Conference Reports, Speeches, Court Transcripts & Decisions)”, p.2575, e-artnow