It is, I own, not uncommon to be wrong in theory, and right in practice;
and we are happy that it is so. Men often act right from their feelings,
who afterwards reason but ill on them from principle: but as it is
impossible to avoid an attempt at such reasoning, and equally impossible
to prevent its having some influence on our practice, surely it is worth
taking some pains to have it just, and founded on the basis of sure
experience.