"No man is free who is not master of himself."

"Control thy passions, lest they take vengeance on thee."

"If you want to improve, be content to be thought foolish and stupid."

"First say to yourself what you would be; and then do what you have to do."

"Make the best use of what is in your power, and take the rest as it happens."

"First learn the meaning of what you say, and then speak."

"There is nothing like a good dose of another woman to make a man appreciate his wife."

"People seldom see the halting and painful steps by which the most insignificant success is achieved."

"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."

"To cease smoking is the easiest thing I ever did. I ought to know, I've done it a thousand times."

"Education is life itself."

"Blind belief is dangerous."