“Never fail to have this attitude of mind, go forward without hurry, learn the essence of things through frequent experiences, taking advantage of every occasion. Fight against all kinds of people and be aware of their mind. Follow a road that is a thousand leagues long one step at a time. Be without haste and be convinced that all these practices are the duty of a bushi. Be victorious today over what you were yesterday; tomorrow be victorious over your clumsiness and then also over your skill. Practice in accordance with what I have written without letting your mind deviate from the way.” 
― Miyamoto Musashi, The Complete Book of Five Rings

Spotterup Article: https://spotterup.com/mastering-the-art-of-self-control/