It is… axiomatic that we should all think of ourselves as being more sensitive than other people because, when we are insensitive in our dealings with others, we cannot be aware of it at the time: conscious insensitivity is a self-contradiction. – W. H. Auden
A sensible man will remember that the eyes may be confused in two ways – by a change from light to darkness or from darkness to light; and he will recognize that the same thing happens to the soul. – Plato