You must develop yourself to be successful
The unexamined leader is not worth following.
To be successful, you can't just run on the fast track; run on your track.
The greatest detriment to many people's success tomorrow is their thinking today.
Efficiency is the foundation for survival. Effectiveness is the foundation for success.
The secret of successful people lies in their ability to discover their strengths and to organize their life so that these strengths can be applied.