"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."

"Of all the self-fulfilling prophecies in our culture, the assumption that aging means decline and poor health is probably the deadliest."

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

"Young men's minds are always changeable, but when an old man is concerned in a matter, he looks both before and after."

"Age isa€|wisdom, if one has lived one's life properly."

"I was always taught to respect my elders and I've now reached the age when I don't have anybody to respect."

"I am not young enough to know everything."