David W. Johnson Professions : Scholar Born : 1940 Browse All Authors Famous Quotes by David W. Johnson There are no speed limits on the road to success. David W. Johnson excellence limits success There are no speed limits on the road to excellence. David W. Johnson Similar Authors Abu Rayhan al-Biruni scholar Abdullah Yusuf Ali scholar Diana L. Eck scholar Darrell Bock scholar Ibn Majah scholar Hamza Yusuf scholar All Authors