读史使人明智,读诗使人灵秀,数学使人周密,科学使人深刻,伦理学使人庄重,逻辑修辞之学使人善辩；
http://www.jianshu.com/p/e8ac0c284601
http://www.jianshu.com/p/356619fe64d5 http://blog.csdn.net/fancylovejava/article/details/45787729 http://www.apkbus.com/forum.php?mod=viewthread&tid=246664&_dsign=5825cda9 http://blog.csdn.net/sahadev_/article/details/48813399