Su stab.During the warring states period,luoyang city,a man named su to do for future study hard,he leading.Sometimes read too tired,avoid to doze.Hence,he got an idea:take a nap,awl stab to the thigh,pain,and awake to read on.
4 and the sun jing,han without sun jing ","Mr Shut close reading often alone.Sometimes really tired,in order to prevent nap,with a rope,a department,a knot in the beam with straight hair,let neck.So,if the nap,will pull hair,immediately wake pain.Hence,the posterity use "without stab" to describe the enquiry to read.
苏秦刺股.战国时期,洛阳城有一个人名叫苏秦,为了日后以做大官,他拚命读书.有时读得太疲倦了,免不了要打瞌睡.于是,他想了个办法：拿着一把锥子,瞌睡来了,就刺一下大腿,痛了,也就睡不着了,以便继续读下去.
4、孙敬悬梁汉朝的孙敬,人称“闭户先生”,常常独自关门读书.有时实在太累,为了防止打瞌睡,他用一根绳子,一头系在梁上,一头结着头发,让头颈正直地吊住.这样,如果打瞌睡,就会扯痛头发,立刻惊醒.于是,后人用“悬梁刺股”来形容勤学好读的精神.
