PERSON IN TOWN
Archbishop Desmond Tutu, South African human-rights activist and Nobel Peace Prize recipient, appears in an onstage conversation. The Rev. Mpho Tutu, his daughter, joins him. [8 p.m., Davies Symphony Hall, 201 Van Ness Ave., S.F.]

LECTURES
Robert Mnookin: The Harvard law professor and conflict-resolution expert discusses the art of international negotiation. [6 p.m., World Affairs Council, 312 Sutter St., S.F.]

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