“Just remember, once you're over the hill you begin to pick up speed.”

“Age steals away all things, even the mind.”

“The secret of genius is to carry the spirit of the child into old age, which mean never losing your enthusiasm.”

“Satisfaction consists in freedom from pain, which is the positive element of life.”

“In action a great heart is the chief qualification. In work, a great head.”

“Consequently, we should try as much as possible to maintain a high degree of health; for cheerfulness is the very flower of it.”

“I have long held the opinion that the amount of noise that anyone can bear undisturbed stands in inverse proportion to his mental capacity and therefore be regarded as a pretty fair measure of it.”