Links:
[1] http://www.edutopia.org/sara-ring
[2] http://www.time.com/time/health/article/0,8599,1851344,00.html
[3] http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2003/12/29/MNG7V3VRBU1.DTL&type=printable
[4] http://www.nea.org/neatoday/0802/violentbehavior.html
[5] http://www.edutopia.org/node/2790
[6] http://www.edutopia.org/how-teach-character-classroom