“Giving is the secret to a healthy life. Not necessarily money, but whatever a person has to give of encouragement, sympathy, and understanding.”

“The way to make money is to buy when blood is running in the streets.”

“Good leadership consists of showing average people how to do the work of superior people.”

“If your only goal is to become rich, you will never achieve it.”

“I'm glad I wrote the book to show what I found out about the [ Standard Oil Company]. I'm glad many people read my book and found out the truth.”

“It now appears that the negro race is, more than any other, susceptible of rapid civilization. The emancipation is observed, in the islands, to have wrought for the negro a benefit as sudden as when a thermometer is brought out of the shade into the sun. It has given him eyes and ears.”

“Emancipation is the demand of civilization. That is a principle; everything else is an intrigue.”

“In the highest civilization, the book is still the highest delight. He who has once known its satisfactions is provided with a resource against calamity.”