" A graceless pastor is a blind man elected to a
professorship of optics, philosophizing upon light and vision, discoursing
upon and distinguishing to others the nice shades and delicate blendings of
the prismatic colours, while he himself is absolutely in the dark! He is a
dumb man elevated to the chair of music; a deaf man fluent upon
symphonies and harmonies! He is a mole professing to educate eaglets; a
limpet elected to preside over angels. "

― Charles Haddon Spurgeon , Lectures to My Students