I think that for the highest achievements nowadays... need to have the stable as a rock scientific base. And also need to own modesty.

In the early 1930s Alekhine dominated tournament play and won two top-class tournaments by large margins. Alexander Alexandrovich Alekhine PhD (Russian: Алекса́ндр Алекса́ндрович Але́хин pronounced [ɐlʲɪkˈsandr ɐlʲɪkˈsandrəvʲɪtɕ ɐˈlʲoxʲɪn]; October 31 [O. October 19] 1892 – March 24 1946) was the fourth World Chess Champion.