Who is William James?
William James is a great psychologist.
And what did he say about most men?
He said that most men are "old fogies at twenty-five".
Is he right?
Yes, he was right.
How so?
At twenty-five, most men are satisfied with their jobs and close their minds to new ideas.
What about those who don't?
They never grow old.
What did Gladstone do?
Took up a new language.
At what age?
Seventy.
How did Laplace feel when he died?
Unsatisfied.
Why?
He was still sure that he had a lot to learn.
Did he believe that we knew anything?
No.