24. A famous thinker once wrote that " the greatest threat to mankind is mankind itself ! " If this is indeed the case , then the current situation should make us ponder our futuer existence .
一位著名的思想家曾经写道：“对人类最大的威胁是人类自身!”如果事实确实如此，那么，现状应该促使我们对我们未来的生存进行思索了。
25. U.S. President Harry Truman once remarked : " The buck stops here ! " His view has been confirmed by numerous world leaders who have assumed full responsibility for their actions .
美国总统杜鲁门曾经说过：“责任止于此!”(意为勿再把责任往别处推，这是杜鲁门办公室桌上的座右铭)他的观点得到了很多对自己的行动承担完全责任的世界领袖的肯定。
