By concentrating our attention on the effect rather than the causes, we can avoid the laborious, nearly impossible task of trying to detect and deflect the many psychological influences on liking. – Robert Cialdini
Concentration is the key to economic results. No other principles of effectiveness is violated as constantly today as the basic principle of concentration. – Peter Drucker
If a man achieves victory over this body, who in the world can exercise power over him? He who rules himself rules over the whole world. – Vinoba Bhave