It seems to me that all of the evil in life comes from idleness, boredom, and psychic emptiness, but all of that is inevitable when you become accustomed to living at others' expense.
It is to our lack of proper content ("notre manque de contenu propre:;», Fr.), of our inner emptiness that we need occupations and distractions, otherwise ("faute de quoi", Fr.) we experience boredom, which is nothing elses than the feeling of unease that take hold of us when our spirit is not absorbed by the mirages of life.
My attitude toward progress has passed from antagonism to boredom. I have long ceased to argue with people who prefer Thursday to Wednesday because it is Thursday.
Of course boredom may lead you to anything. It is boredom sets one sticking golden pins into people, but all that would not matter. What is bad (this is my comment again) is that I dare say people will be thankful for the gold pins then.
A great affliction of all Philistines is that idealities afford them no entertainment, but to escape from boredom they are always in need of realities.
I wish to speak with all respect of persons, but sometimes I must pinch myself to keep awake, and preserve the due decorum. They melt so fast into each other, that they are like grass and trees, and it needs an effort to treat them as individuals.
Boredom has been used as a technique, it is a device. In Zen, boredom is used as a device: you are bored to death, and you are not allowed to escape. You are not to go outside, you are not to entertain yourself, you are not to do, you are not to talk, you are not to read novels and detective stories. No thrill. No possibility to escape anywhere.