" Teach a child arithmetic," he said at last, "and he can use it to
cheat with, can't he? Teach a man the laws and forces of the
universe, and he can turn them against his teacher, can't he?
Give a child a box of matches, and there will always be some one
to show him how to set fire to a house. Teach me spiritual knowledge,
and for every one desire to use it rightly I shall have a thousand
impulses to do the wrong thing. Persistence in thinking the wrong
thing makes a man a fool if he is untaught and a dugpa if he knows
too much. Do you think you know enough to be a dugpa? "

― Talbot Mundy , The Devil's Guard