“Ready are you? What know you of ready? For eight hundred years have I trained Jedi. My own counsel will I keep on who is to be trained. A Jedi must have the deepest commitment, the most serious mind. This one, a long time have I watched. All his life has he looked away… to the future, to the horizon. Never his mind on where he was. …Hmm? On what he was doing.”
-Yoda from Empire Strikes Back