"The doctor of the future will give no medicine, but will interest her or his patients in the care of the human frame, in a proper diet, and in the cause and prevention of disease."

"I have not failed. I've just found 10,000 ways that won't work."

"If we all did the things we are capable of doing, we would literally astound ourselves."

"Many of life's failures are those who didn't know how close they were to success when they gave up."

"A genius is just a talented person who does his homework."

"Genius is one per cent inspiration, ninety-nine per cent perspiration."

"The tree of life is self pruning."

"Love is the irresistible desire to be irresistibly desired."

"Life does not count by years. Some suffer a lifetime in a day, and so grow old between the rising and the setting of the sun."

"You are only as old as the woman you feel."

"I do not know the American gentleman, god forgive me for putting two such words together."

"We've sent a man to the moon, and that's 290,000 miles away. The center of the Earth is only 4,000 miles away. You could drive that in a week, but for some reason nobody's ever done it."