Benjamin Franklin, in thinking about the age 40, argued, "At twenty years of age, the will reigns; at thirty the wit; at forty the judgment," while W.B. Pitkin stated, "Life begins at 40." One funny quote about turning 40 states that the age of 40 is not old, if the 40 year old is a tree.
Jules Renard spoke to the understanding reached at the age of 40, stating that people do not understand life any better at the age of 40 than they did at the age of 20, but comments that at the age of 40, people know and admit that fact. Arthur Schopenhauer also puts the understanding of life into context at the age of 40 by saying that the first 40 years of life give people text, while the next 30 supply commentary.
Maya Angelou made a statement about gender at the age of 40 by saying "When I passed forty I dropped pretense, 'cause men like women who got some sense." Colleen McCullough looked at gender from another angle by saying that the lovely thing about being 40 is appreciating 25 year old men.
Putting the age of 40 into a larger context of age, Ann Landers stated that age 20, people worry about what others think of them, but at 40, people don't care what other people think of them. At 60, people discover that others haven't been thinking of them at all.