If all you have is a hammer, everything looks like a nail.

"When beggars and shoeshine boys, barbers and beauticians can tell you how to get rich it is time to remind yourself that there is no more dangerous illusion than the belief that one can get something for nothing."

"A political leader must keep looking over his shoulder all the time to see if the boys are still there. If they aren’t still there, he’s no longer a political leader."