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"One way, and this is the way I prefer, is to havea clear physical picture of the process that you are calculating. The other wayis to have a precise and self-consistent mathematical formalism. You have neither.¡±»¹ÓÐÒ»¾ä¾ÍÊÇ¡°I remember my friend Johnny von Neumann usedto say, with four parameters I can fit an elephant, and with five I can makehim wiggle his trunk¡±¡£ÊµÑéºÍÀíÂ۵ĻìºÏÌ壬µÄÈ·²»¼òµ¥¡£È»¶ø£¬²»½ö½öÓÚ´Ë£¬FermiµÄʵÑé¿Éν¸÷¸ö¾«²Ê¡£²»½öÉÆÓÚÓÃÎïÀíµÄÖ±¾õÈ¥×öʵÑ飬¸üÉÆÓÚÓÃÀíÂÛÓïÑÔʵÑé¡£»¹ÓÐÒ»¸öÊÇÔ¤ÑÔÒ»¸ö´ó³ÇÊУ¨Å¦Ô¼£¿¾É½ðɽ£¿¼Ç²»ÇåÁË£©¸ÖÇÙʦµÄÊýÁ¿¡£ Èç½ñµÄ¿ÆÑ§½ç£¬¼¸ºõûÈË´ïµ½Fermi µÄ¸ß¶ÈÁË£¬´ó¼Ò£¨²¿·Ö£©¸ü¹ØÐĵÄÊÇÃûÀûÖ®Õù£¬»òΪÉú´æÆ´ÃüÉêÇë¿ÆÑлù½ð£¬»òΪÂú×ãÐéÈÙÕùÃûÖðÁ¦£¬×öѧÎÊ·´¶ø³ÉÁËÒµÓà°®ºÃ¡£Òò´Ë£¬ÔÚѧÉúʱ´ú£¬×Ô¼ºÒª¼Çס£¬×öѧÉúÊÇÒ»¸ö»ú»á£¬¶ø²»ÊÇÒ»ÖÖȨÀû£¬ÒªÈ¥Ö¤Ã÷×Ô¼ºÄܹ»×öºÃÑо¿¶ø²»ÊÇÈ¥±§Ô¹ÆäËûÔÒòʹÄã×öµÄ²»ºÃ¡£±ÏÒµºó£¬ÒªºÃºÃÏëÏë×Ô¼ºµÄ¶¨Î»£¬Èý˼ºó£¬Ó¦Íìµñ¹ÈçÂúÔ£¬Î÷±±Íû£¬ÉäÌìÀÇ¡£ µÚ¶þ¸ö£ºÕâ¸ö²»±ãÆÀÂÛʲô£¬¶ÔÓÚÈȵãÁìÓòµÄʵÑ飬²½Öè¶¼ÊÇ´ó¼ÒÁ˽âµÄ¡£ÄÃÀ´A µÄ²ÄÁÏ£¬B µÄ·½·¨£¬C µÄ±íÕ÷£¬D µÄÒâÒ壬×îºó¼ÓÉÏ×Ô¼ºÃû×Ö£¬OK£¬¾Í³ÉÁË×Ô¼ºµÄÎÄÕ¡£Õý³££¬¼´Ê¹Äã²»ÕâÑùд£¬±ðÈËÒ²ÊÇÕâÑùд£¬Õâ²»ÊdzϮ£¬¶øÊÇÒ»Ì׳ÌÐò£¬¾ÍºÍ½â·½³ÌÒ»Ñù£¬±ØÐëÓеġ£Äã×ÔÈÏΪ´ÏÃ÷£¬¿ÉÒÔ´Ó¿ªÊ¼¾ÍÖªµÀ½á¹ûÊÇʲô£¬¾Í¸æËßÈ˼ң¬ÄãÃǶ¼±ðæ»îÁË£¬´ð°¸ÎÒ¶¼ÖªµÀÁË£¬ÊÇXXX£¬²½ÖèÄØ£¿Õâô¼òµ¥£¬»¹Óв½Ö裿Èç¹ûÕæµÄÊÇÕâÑù£¬ÄÇ×öʵÑéµÄÄ¿µÄÓÖÊÇʲô£¿¶¼Äܲµ½½á¹ûµÄʵÑ飬»¹ÓбØÒª×öÂ𣿠ÎÒÈÏΪ£¬ÒÔǰ£¨Õâ¸öʱ¼äµã»¹Ã»ÏëºÃ£¬¿ÉÄÜÒªºÃºÃ¿¼ÂÇÏ£©µÄʵÑ飬ÊÇÑéÖ¤Ô¤ÑÔµÄÕýÈ·ÐÔ£»ÏÖÔÚµÄʵÑ飬ÊÇ·¢ÏÖÓëÔ¤ÑÔÏà×óµÄÏÖÏó¡£ÒÔǰÊÇͨÐÔ£¬ÏÖÔÚÔòÊǸöÐÔ¡£ »Øµ½Ö÷Ì⣬ÎÊÌâÊÇÎÒÃÇÒªÒ»Ö±ÄñðÈ˵ÄA £¬B£¬C ºÍD ÔÙ¼Ó×Ô¼ºµÄÃû×ÖÂð£¿ÔÚÕâµãÉÏ¿´£¬ÎÒÃÇÓ¦¸ÃÏòPierre-Gilles de Gennesѧϰ¡£ÔçÄêÑо¿³¬µ¼£¬ºóתսҺ¾§£¬¼Ì¶øÌôÕ½±ê¶ÈÂÛ£¬¿Éν½®ÍÁÁÉÀ«¡£³¬µ¼Ëû¸ú½ø£¨²½BCSµÄºó³¾£©£¬Òº¾§ÏÖÏó·½ÃæËûÒ²²»ÊÇ¿ª´´Õߣ¬µ«ÊÇÄÜÄÃAµÄÀíÂÛ£¬½âÊÍBµÄÏÖÏ󣬰ÑÁ½¸ö¿´ËƲ»Ïà¸ÉµÄ¶«Î÷Á¬½ÓÆðÀ´£¬¿Éν¶ÀÊ÷Ò»ÖÄ¡£ Nobel Foundation¶ÔËûµÄÆÀ¼ÛÊÇ¡°Major progress in science is often made by transferringknowledge from one discipline to another. Only few people have sufficientdeep-insight and sufficient overview to carry out this process. De Gennes isdefinitely one of them¡±. 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