CONTENIDO: Idea : Why we misread motives : We think other people are more mercenary than they really are/ Gardiner Morse. -- Opinion : Taking stock : If you want managers to act in their shareholders' best interests, take away their company stock/ Roger L. Martin. --Conversation : How presidents persuade : A white house insider looks at stagecraft, statecraft, and why it pays to come clean/ David Gergen. -- Brooks in brief/ John T. Landry