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.
中国石化要坚持高质量发展，把科技创新作为核心驱动力。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Music is a world within itself.
