是印度给了我们表达所有数字的巧妙方法,通过十个符号,每个符号既有位置值也有绝对值。
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.
科学是提出正确问题的艺术。
感知是一个主动的过程,大脑从感官输入中构建意义。