Keep guard over your eyes and ears as the inlets of your heart, and over your lips as the outlets, lest they betray you in a moment of unwariness.
Source: The Tenant of Wildfell Hall, 1848.
-- Anne Bronte, (Jan 17 1820-1849), English novelist, poet; She is best known for her novel Agnes Grey, 1947; sister of Emily and Charlotte Bronte.