I usually like the uplifting quotes but these are a little more sobering:

In a sort of ghastly simplicity, we remove
the organ and demand the function. We make
men without chests and expect of them virtue
and enterprise. We laugh at honour and are
shocked to find traitors in our midst. We
castrate and bid the gelding be fruitful.
—C. S. Lewis, The abolition of Man

It is no measure of health to be well adjusted to a profoundly sick society. — unknown?