Be thou familiar, but by no means vulgar.
The friends thou hast and their adoption tried,
Grapple them to thy soul with hooks of steel;
But do not dull thy palm with entertainment
Of each new-hatched, unfledged comrade.
Beware
Of entrance to a quarrel; but being in,
Bear it that the opposer may beware of thee.
Give every man thine ear; but few thine voice;
Take each man’s censure; but reserve thy judgment.