The relation between parents and children is essentially based on teaching.

You [the teacher] do not merely insert a lot of facts, if you teach them [the students] properly. It is not like injecting 500 cc. of serum, or administering a year's dose of vitamins.

Many people have played themselves to death. Many people have eaten and drunk themselves to death. Nobody ever thought himself to death.

The wise teacher knows that 55 minutes of work plus 5 minutes laughter are worth twice as much as 60 minutes of unvaried work.

Know the subject; love the subject; like your students; know your students.

The aim of those who try to control thought is always the same. They find one single explanation of the world, one system of thought and action that will (they believe) cover everything; and then they try to impose that on all thinking people.

Bad teaching wastes a great deal of effort, and spoils many lives which might have been full of energy and happiness.