"A great idea is usually original to more than one discoverer. Great ideas come when the world needs them. They surround the world's ignorance and press for admission."
"Vigilance in watching opportunity; tact and daring in seizing upon opportunity; force and persistence in crowding opportunity to its utmost possible achievement - these are the martial virtues which must command success."
"A disciplined conscience is a man's best friend. It may not be his most amiable, but it is his most faithful monitor."
"In the destiny of every moral being there is an object more worthy of God than happiness. It is character. And the grand aim of man's creation is the development of grand character - and grand character is, by its very nature, the product of probationary discipline."