Discipline does not mean suppression and control, nor is it adjustment to a pattern or ideology. It means a mind that sees 'what is' and learns from 'what was'.
Self-discipline, although difficult, and not always easy while combating
negative emotions, should be a defensive measure. At least we will be able to prevent the advent of negative conduct dominated by negative emotion. That is 'shila', or moral ethics. Once we develop this by familiarizing ourselves with it, along with mindfulness and conscientiousness, eventually that pattern and way of life will become a part of our own life.
I certainly do not adore the writer's discipline. I have lost lovers, endangered friendships, and blundered into eccentricity, impelled by a concentration which usually is to be found only in the minds of people about to be executed in the next half hour.
It is quite an old-fashioned fallacy to suppose that our objection to scepticism is that it removes the discipline from life. Our objection to scepticism is that it removes the motive power. Materialism is not a thing which destroys mere restraint. Materialism itself is the great restraint.
The discipline of suffering, of great suffering - do you not know that it is this discipline alone that has produced all the elevations of humanity so far?
Mind you, there is no value in learning. You are all mistaken in learning. The only value of knowledge is in the strengthening, the disciplining, of the mind.
What is the next step, the practical application? —I will answer that the absolutely vital thing is to consolidate your understanding, to become capable of enjoyment, of living in the present, and of the discipline which this involves. Without this you have nothing to give.