Proper physical and mental care, including strict temperance and a healthy diet, strengthens the mind, whereas a disordered stomach causes mental uncertainty, irritability, and poor decision-making.

Original passage

Every day men in positions of trust have decisions to make upon which depend results of great importance. Often they have to think rapidly, and this can be done successfully by those only who practice strict temperance. The mind strengthens under the correct treatment of the physical and mental powers. If the strain is not too great, new vigor comes with every taxation. But often the work of those who have important plans to consider and important decisions to make is affected for evil by the results of improper diet. A disordered stomach produces a disordered, uncertain state of mind. Often it causes irritability, harshness, or injustice. Many a plan that would have been a blessing to the world has been set aside, many unjust, oppressive, even cruel measures have been carried, as the result of diseased conditions due to wrong habits of eating.