Wisdom is an individual pursuit, but it depends on other people. It is a communal enterprise, and is both acquired and exercised by selecting one's company carefully. The various epigrams in Proverbs are often classified into "ethical sayings" (things you should not do to others) and "prudential sayings" (things you should not let others do to you). But what ties it all together is the single theme: Keep good company. This includes teachers, companions, business associates, and your intimate partner. Keep good company. This is the thread that runs through the Book of Proverbs from beginning to end.