John Owen on training oneself to be negligent

…for although men do not choose and resolve to be negligent and inadvertent, yet if they choose the things that will make them so, they choose inadvertency itself as a thing may be chosen in its cause. And let not men think that the evil of their hearts is in any measure extenuated because they seem, for the most part, to be surprised into that consent which they seem to give unto it; for it is negligence of their duty in watching over their hearts that betrays them into that surprise. John Owen, Overcoming Sin and Temptation