We not only believe what we see, to some extent we see what we believe ...The implications of our beliefs are frightening.
The seeing of objects involves many sources of information beyond those meeting the eye when we look at an object. It generally involves knowledge of the object derived from previous experience, and this experience is not limited to vision but may include the other senses: touch, taste, smell, hearing, and perhaps also temperature or pain.
One of the difficulties in understanding the brain is that it is like nothing so much as a lump of porridge.
A fine woman shews her charms to most advantage when she seems most to conceal them. The finest bosom in nature is not so fine as what imagination forms.