The principle referred to in the previous entry is also at play in the sphere of education and learning in general. A teacher, for instance, cannot directly "cause" a student to learn (no external force could accomplish this), they can only engender conditions favorable to the student furnishing their own comprehension of the material, guiding them to take their own steps toward understanding. Genuine knowledge cannot be implanted in another mind, or simply imitated; the work is always done by the learner themselves, despite the process occuring optimally (in the majority of cases) in the presence of suggestion, demonstration, illustration, guidance, etc., provided by an instructor or by works of reference.