大约在一百万年前(也可能在两三百万年前),地球上出现了最早的人类。原始的人类和大自然艰难地搏斗着。在长期的劳动中,他们不断进步,慢慢地产生了“数”的思想。他们找到了食物,会想到这是“有”;找不到食物,就会想到“无”。要是找到大量的食物,他们认为是“多”;得到的食物不够吃,他们认为这是“少”。有、无和多、少,是我们祖先最早概括出来的“数”的思想。直到两万五千年前,人们说“用你的枪头 About a million years ago (and possibly two or three million years ago), the earliest human beings appeared on Earth. The primitive humans struggled hard with nature. In long-term labor, they make continuous progress and slowly produce the idea of ​​”number“. When they find the food, they think of it as ”yes“. If they can not find the food, they think of ”no“. If they find a lot of food, they think it is ”more“; the food they get is not enough to eat, they think it is ”less“. Yes, no, no, no, is the ”number“ thought first outlined by our ancestors. Until twenty-five thousand years ago, people said ”use your pipette tip