"Only as you do know yourself can your brain serve you as a sharp and efficient tool. Know your own failings, passions, and prejudices so you can separate them from what you see."

"If you have made a mistake, cut your losses as quickly as possible."

"Old age is always fifteen years older than I am."

"Never answer a critic, unless he's right."

"Before you contradict an old man, my fair friend, you should endeavor to understand him."

"The older I get, the more I feel almost beautiful..."

"The surprising thing about young fools is how many survive to become old fools."

"Aging is not 'lost youth' but a new stage of opportunity and strength."

"The heads of strong old age are beautiful beyond all grace of youth."

"To keep the heart unwrinkled, to be hopeful, kindly, cheerful, reverent - that is to triumph over old age."