Don’t let those who take advantage of your generosity stop you from being generous. – Author Unknown

A person who is nice to you, but rude to the waiter, is not a nice person. – Dave Barry, “Things That It Took Me 50 Years to Learn”

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