Yield to all and you will soon have nothing to yield.

In the old days, when men were allowed to have many wives, a
middle-aged Man had one wife that was old and one that was
young; each loved him very much, and desired to see him like
herself.

Now the Man's hair was turning grey, which the young Wife did
not like, as it made him look too old for her husband. So every
night she used to comb his hair and pick out the white ones. But
the elder Wife saw her husband growing grey with great pleasure,
for she did not like to be mistaken for his mother. So every
morning she used to arrange his hair and pick out as many of the
black ones as she could. The consequence was the Man soon
found himself entirely bald.

He that submits his principles to the influence and caprices of
opposite parties will end in having no principles at all.