Thinking for a Living 2nd Edition
Work
"Tom said to himself that it was not such a hollow world after all....If he had been a great and wise philosopher, like the writer of this book, he would now have comprehended that Work consists of whatever a body is obliged to do and that Play consists of whatever a body is not obliged to do."
Mark Twain. The Adventures of Tom Sawyer. Chaper II: "The Glorious Whitewasher."
Knowledge
"But how is it that some people enjoy spending a great deal of time in my company ... It is because they enjoy hearing me examine those who think that they are wise when they are not - an experience which has its amusing side."
Socrates, Apology (19c)