“The weak may not be admired and hero-worshipped; but they are by no means disliked or shunned; and they never seem to have the least difficulty in marrying people who are too good for them. They may fail in emergencies; but life is not one long emergency: it is mostly a string of situations for which no exceptional strength is needed, and with which even rather weak people can cope if they have a stronger partner to help them out.”