"All Bibles are man-made."
"There is no expedient to which a man will not go to avoid the labor of thinking."
"Opportunity is missed by most people because it is dressed in overalls and looks like work."
"Show me a thoroughly satisfied man, and I will show you a failure."
"There is no substitute for hard work."
"I am not discouraged, because every wrong attempt discarded is another step forward."
"I have never seen the slightest scientific proof of the religious idea of heaven and hell, of future life for individuals, or of a personal God."
"The doctor of the future will give no medicine, but will educate his patients in the care of the human frame, in diet, and in the cause and prevention of disease."
"A genius is just a talented person who does his homework."
"Faith, as well intentioned as it may be, must be built on facts, not fiction--faith in fiction is a damnable false hope."
"To invent, you need a good imagination and a pile of junk."
"Everything comes to him who hustles while he waits."
"Genius is one percent inspiration and ninety-nine percent perspiration."
