Knowledge is the only instrument of production that is not subject to diminishing returns. —John Clarke More about this quote Permalink for this quote facebook twitter tumblr email
More quotations from John Clarke Who is more busy than he who hath least to do? —John Clarke More about this quote Permalink for this quote facebook twitter tumblr email
Who is more busy than he who hath least to do? —John Clarke More about this quote Permalink for this quote facebook twitter tumblr email