Hi. my opinion is that It does not mean that if your an educator, you should know everything, what is important is you know the basic knowledges or the fundamental concepts (of your subject) and with your creativity and strategies of teaching that would help (for starter), but of course, you have to spent of most of time on readings and studying ( reviewing, learning new concepts, continues acquiring knowledge). Attending seminars/trainings counts. "Experience is the beginning of knowledge and knowledge is the begining of wisdom" Yes wisdom is the secret of being a GOOD Educator.