The words of the Teacher, the son of David, king in Jerusalem. Vanity of vanities, says the Teacher,     vanity of vanities! All is vanity. What do people gain from all the toil     at which they toil under the sun? A generation goes, and a generation comes,     but the earth remains forever. (Ecclesiastes 1:1-4 NRSV) A month or two ago, I was speaking with a friend about the extra personal time I gain working at home.