How much time and peace you gain when you don't worry about what your neighbor said or did or tried to do. Focus only on your own actions — that they may be just and holy. As Agathos put it: Don't look around at the bad behavior of others, but run straight ahead without getting distracted or worked up.
Now much time and leisure doth he gain, who is not curious to know what his neighbour hath said, or hath done, or hath attempted, but only what he doth himself, that it may be just and holy? or to express it in Agathos' words, Not to look about upon the evil conditions of others, but to run on straight in the line, without any loose and extravagant agitation.