Let the questions be the curriculum.

One of the very important characteristics of a student is to question. Let the students ask questions.

The main object of teaching is not to give explanations, but to knock at the doors of the mind.

The greatest education in the world is watching the masters at work.

No other human occupation opens so wide a field for the profitable and agreeable combination of labor with cultivated thought, as agriculture.

Practice is absolutely necessary. You may sit down and listen to me by the hour every day, but if you do not practice, you will not get one step further. It all depends on practice.