The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.
我们现在看到的最错误的想法便是以为身体活动就只是身体活动而已,以为它不具有更高层次的功能,其实,心智的发展必然和身体动作相配合,而且是相互依赖存在的。
Innovation is not just about technology; it's about changing the way we think and operate.