Well they sell Bibels, The Koran and books by the sientologs, all claiming to be tru too.. hoaks are popular to belive among suckers!
One of my teachers *cough*theology*cough* says that nothing is really "true" only confirmed by empirical evidence. Don't worry, he's philosophically smarter than Dave...he'd make even his head spin. Yes, I mentioned Dave to him and he scoffed and said some people are just closed minded and think they know everything. He's agnostic, so he would say Dave could be right, but don't be so sure.
Also, as to quack medicine, the placebo effect does work in very rare cases, so this could be helpful to some people. I would still preffer they use empirical science then something we've empirically shown to be
EDIT: I'm in that class becuase it was the most interesting topic of a class they forced me to take.
The only "true" is something that confirms Darwin on daily basis, the strongest fit (IQ !) survival, in other words " A fool and his money are soon parted" that brings it right over to the moral side of it, should the smartest one fool or trick the money from the stupid ones that "believe".
There was a comedian, they are ALWAYs the one to trust on such things (Money and politics/politicans) , W. C. Fields said; "It's morally wrong to allow a sucker to keep his money. "
Justa s a post scriptum..
A fool and his money are soon parted
Origin
This is quite an early proverb in the English language and, as such, might be thought to contain the wisdom of the ancients. The notion was known by the late 16th century, when it was expressed in rhyme by Thomas Tusser in Five Hundreth Pointes of Good Husbandrie, 1573:
A foole & his money,
be soone at debate:
which after with sorow,
repents him to late.
The precise wording of the expression comes just a little later, in Dr. John Bridges' Defence of the Government of the Church of England, 1587:
If they pay a penie or two pence more for the reddinesse of them..let them looke to that, a foole and his money is soone parted.