The strength of any plan depends on the time. Circumstances and things eternally shift and change.
Michel de MontaigneBut as Nature is the best guide, teaching must be the development of natural inclinations, for which purpose the teacher must watch his pupil and listen to him, not continually bawl words into his ears as if pouring water into a funnel. Good teaching will come from a mind well made rather than well filled.
Michel de Montaigne