But it does not matter to a man whether he acts at his own peril or not, unless harm comes of it, and there must always be some one within reach of the consequences of the act before any harm can be done.
—Oliver Wendell Holmes
[Scientists must be certain of their interpretation of the facts, that their priorities are correct, and that they are not bringing unnecessary and unjustified anxiety to many by over-statement or by expression of cancer risks in terms incomprehensible to the lay public.
—John Higginson, Director, International Agency for Research on Cancer