Quote by Taiichi Ohno

Why not make the work easier and more interesting so that people do not have to sweat?
The Toyota style is not to create results by working hard. It is a system that says there is no limit to people's creativity. People don't go to Toyota to 'work' they go there to 'think'

Please suggest source details if you know: book, page, year, online article address (url), correction (different author...), etc.. Thanks.