A man's reading program should be as carefully planned as his daily diet, for that too is food, without which he cannot grow mentally.
Andrew CarnegieI believe the true road to preeminent success in any line is to make yourself master in that line. I have no faith in the policy of scattering one's resources, and in my experience I have rarely if ever met a man who achieved preeminence in money making.. certainly never one in manufacturing.. who was interested in many concerns.
Andrew Carnegie