I wrote and published a pamphlet, entitled "An
Account of the new-invented Pennsylvania Fireplaces;
wherein their Construction and Manner of Operation is
particularly explained; their Advantages above every
other Method of warming Rooms demonstrated; and all
Objections that have been raised against the Use of
them answered and obviated," etc. This pamphlet had
a good effect. Gov'r. Thomas was so pleas'd with the
construction of this stove, as described in it, that
he offered to give me a patent for the sole vending
of them for a term of years; but I declin'd it from
a principle which has ever weighed with me on such
occasions, viz., That, as we enjoy great advantages
from the inventions of others, we should be glad of an
opportunity to serve others by any invention of ours;
and this we should do freely and generously.

        -- Benjamin Franklin