Do you know how to use a hammer? Do you know how to make it? Does not knowing how to make it prevent you from using it effectively?
I hope not, because then there must not be even a single tool I know how to use.
http://www.econlib.org/library/Essays/rdPncl1.html
Do you know how to use a hammer? Do you know how to make it? Does not knowing how to make it prevent you from using it effectively?
I hope not, because then there must not be even a single tool I know how to use.
http://www.econlib.org/library/Essays/rdPncl1.html