ttp-equiv="content-type" content="text/html; charset=UTF-8"><script><!--document.location="/translate_p?hl=en&amp;langpair=en|de&amp;u=http://www.goodcommunicationtips.com/2007/11/02/tracing-the-evolution-of-motivation-theories/&amp;usg=ALkJrhgYqZtE6_Ef8B4UhbdgH5IPNsvNcg";--></script><a href="/translate_p?hl=en&amp;langpair=en|de&amp;u=http://www.goodcommunicationtips.com/2007/11/02/tracing-the-evolution-of-motivation-theories/&amp;usg=ALkJrhgYqZtE6_Ef8B4UhbdgH5IPNsvNcg">Translate</a>