The core of technological innovation is to solve practical problems, not to innovate for the sake of innovation.
It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.
劳动分工在尽可能程度上引入,在每一门艺术中都会导致劳动生产力的相应增加。
To be human is to be in conflict with oneself.