Whoever thinks his friend more important than his country, I rate him nowhere.
A day lays low and lifts up again all human things.
To err from the right path is common to mankind.
Though a man be wise it is no shame for him to live and learn.
To throw awayan honest friend is, as it were, to throw your life away.
Knowledge must come through action. You can have no test which is not fanciful, save by trial.