If you think you're too small to have an impact, try going to bed with a mosquito.
Source: In Words of Women Quotations for Success, by Power Dynamics Publishing, 1997.
-- Anita Roddick, (Oct 23 1942-2007), English businesswoman, social reformer; She founded The Body Shop shampoos, lotions, and creams from natural ingredients; uses business as a vehicle for social and environmental concerns.