Some drives have a clear relationship with the chemical and...

Some drives have a clear relationship with the chemical and physiological body functions, such as the urge to eat and drink which is with man from birth to death and which is stimulated when the body requires food and water. The same is tenable for sexual desire which develops at the age of puberty due to the secretion of specific hormones. Another group of motives give rise to specific bodily functions.

Those lacking insight believe that psychological motives are the same as body function such as the desire to defend or take revenge which becomes apparent in the form of anger and which turns the face red and makes the veins on the neck…