essentially

And he answered, 'By recognizing that womankind are by nature headstrong and energetic in the pursuit of their own desires, and subject to sudden changes of opinion through fallacious reasoning, and their nature is essentially weak. It is necessary to deal wisely with them and not to provoke strife. For the successful conduct of life. the steersman must know the goal toward which he ought to direct his course. It is only by calling upon the help of God that men can steer a true course of life at all times.'

But of the passions there are two comprehensive sources, namely, pleasure and pain, and either belongs essentially also to the soul as well as to the body.