人类历史上最早的书写工具也许是燧石。早在我们的祖先还是穴居的原始人时,他们为了表达自己的想法和记下一些事情,就开始用燧石在穴洞的墙上刻画简单的图案和符号了。后来,原始人发明了更为简便的书写方法,即用手指蘸着植物的浆汁或动物的血液在墙上画上各种记号;当时,作为书写工具的还有红泥和木炭。 Perhaps the earliest writing instrument in human history was flint. As early as the time when our ancestors were primitive people in burrows, they began to use flint to paint simple patterns and symbols on the cave walls in order to express their thoughts and to write down a few things. Later, the primitives invented a simpler method of writing, using a finger dipped in the juice of a plant or the blood of an animal, on the wall with various signs; at the time, red mud and charcoal were also used as writing instruments.