Always do your best. What you plant now, you will harvest later. – Og Mandino
Obstacles are necessary for success because in selling, as in all careers of importance, victory comes only after many struggles and countless defeats. – Og Mandino
It is those who concentrates on but one thing at a time who advance in this world. The great man or woman is the one who never steps outside his or her specialty or foolishly dissipates his or her individuality. – Og Mandino
The person who knows one thing and does it better than anyone else, even if it only be the art of raising lentils, receives the crown he merits. If he raises all his energy to that end, he is a benefactor of mankind and its rewarded as such. – Og Mandino