Be advised what thou dost discourse of, and what thou maintainest whether touching religion, state, or vanity; for if thou err in the first, thou shalt be accounted profane; if in the second, dangerous; if in the third, indiscreet and foolish.
Walter RaleighNo one can take less pains than to hold his tongue. Hear much, and speak little; for the tongue is the instrument of the greatest good and greatest evil that is done in the world.
Walter Raleigh