Quotes from John Amos Comenius

Let us have but one end in view, the welfare of humanity; and let us put aside all selfishness in consideration of language, nationality, or religion.

Let the main object... to seek and to find a method of instruction, by which teachers may teach less, but learners learn more.

Three things give the student the possibility of surpassing his teacher: ask a lot of questions, remember the answers, teach.