無政府狀態(tài)是戰(zhàn)爭(zhēng)的允許性原因；它創(chuàng)造了一個(gè)國(guó)家必須依靠自助來確保生存的環(huán)境。
求人要求英雄，接濟(jì)人要接濟(jì)那些急時(shí)沒有辦法的人。
The key to advancing computer science is collaboration across disciplines.
The poem is a way of living in the world, not just observing it.