Yeah, nice try, but that's not what he said. According to mountvernon.org, houstonpress.com, avalon.law.yale.edu and thefederalistpapers.org, it comes from his first annual address to Congress on January 8, 1790 and the actual quote is:
A free people ought not only to be armed but disciplined; to which end, a uniform and well digested plan is requisite: and their safety and interest require that they should promote such manufactories, as tend to render them independent on others for essential, particularly for military supplies.