Al Duncan Professions : Motivational speaker Browse All Authors Top 6 quotes by Al Duncan Self - development should be a perpetual process. In life you are either growing or rotting. You're moving forward or backwards; there is no standing still. Al Duncan achievement moving-forward self Stop spending your time; start investing your time. Al Duncan spending investing-your-time achievement Most people aren't unsuccessful in life because they don't know what to do. They are unsuccessful because they don't DO what they know how to do. Knowledge is power IF...you use it. Al Duncan achievement use people Achievement without fulfillment "High achievement without fulfillment is a broken way of life." Al Duncan achievement broken way What's wrong vs Right with you It's not a question of what's wrong with you, it's a question of what's right with you. Al Duncan achievement Your beliefs and perceptions determine the boudaries of your world. Al Duncan achievement perception world Similar Authors Bob Farrell motivational-speaker Grant Cardone motivational-speaker Gabrielle Bernstein motivational-speaker Louis Zamperini motivational-speaker Lizzie Velasquez motivational-speaker Lilly Singh motivational-speaker All Authors