"'Tell a man that there are 300 billion stars in the universe and he'll believe you. Tell him a bench has wet paint on it he'll have to touch it to be sure (Anon.)' what does this suggest about the way different types of knowledge are justified?"
Hot plates have to be touched. It is common knowledge that no matter how many times a waitress tells you that the plate is hot; you have to touch it to make sure. This is an example, along with the bench with wet paint on it of tactile proved knowledge. The above mentioned quote exhibits combined optical/believed knowledge against tactile knowledge and asks the question, "What does this suggest about the way different types of knowledge are justified?" An answer could be: different types of knowledge evoke different manners of justification.
There are many types of knowledge, mainly classified by the sense by which one must use to perceive them; optical, auditory, olfactory, tactile, and gustatory.
Each of these senses allows knowledge to be perceived by the body, all in different ways. An example here is the tactile knowledge of wet and hot, the bench and the plate. These two items are tactile and close at hand which create a need to touch them, due to the known closeness of the items.
The sense of touch is one often combined with the sense of sight. Once a person perceives an object optically, the urge to know what the surface is like either evokes a movement to make oneself closer to the object or to use another sense to further the knowledge of the object, such as the sense of touch. It is natural in a human to learn as much as possible about an object through all the senses. Auditory knowledge comes...