" attain the level of fulfillment you truly deserve in life. These principles are the foundation on which you should base your personal development work. They will require that you work on yourself before you master them but I assure you that the investment of time and effort is well worth it. As Jim Rohn said “Learn to work harder "

― Thibaut Meurisse , Success: Why You Fail Where Others Succeed - 5 Life-Changing Personal Development Tips You Wish You Knew (Success Principles Book 1)