I tend to agree that there are no shortcuts. However I do think you can be disciplined in one area (e.g. work) and lack discipline in another (e.g. diet and exe

I tend to agree that there are no shortcuts. However I do think you can be disciplined in one area (e.g. work) and lack discipline in another (e.g. diet and exercise). So discipline is not an on or off switch for a person, it's more granular and nuanced than that.