Never delay in undertaking any work you have to do, for the first brief delay will lead to a second, more prolonged one, and the second to a third, still longer, and so on. Thus work begins too late and is not done in its proper time, or else is abandoned altogether, as something too burdensome. Having once tasted the pleasure of inaction, you begin to like and prefer it to action. In satisfying this desire, you will little by little form a habit of inaction and laziness, in which the passion for doing nothing will possess you to such an extent that you will cease even to see how incongruous and criminal i is; except perhaps when you weary of this laziness, and are eager to take up your work. Then you will see with shame how negligent you have been and how many necessary works you have neglected, for the same of the empty and useless ‘doing what you like’.

Scarcely perceptible at first, this negligence permeates everything and not only poisons the will, planting in it aversion to all kind of effort and all forms of spiritual doing and obedience, but also blinds the mind and prevents it from seeing all the folly and falsehood of the arguments which support this disposition of will…

— från Unseen Warfare : The Spiritual Combat and Path to Paradise of Lorenzo Scupoli