All things that now thou seest, are but for a moment.
That nature, by which all things in the world are administered,
will soon bring change and alteration upon them, and then
of their substances make other things like unto them : and then
soon after others again of the matter and substance of these:
that so by these means, the world may still appear fresh
and new. XIX. Whensoever any man doth trespass against other,
presently consider with thyself what it was that he did
suppose to be good, what to be evil, when he did trespass.
For this when thou knowest, thou wilt pity him thou wilt
have no occasion either to wonder, or to be angry.
For either thou thyself dust yet live in that error
and ignorance, as that thou dust suppose either that very thing
that he doth, or some other like worldly thing, to be good;
and so thou art bound to pardon him if he have done that
which thou in the like case wouldst have done thyself.
Or if so be that thou dost not any more suppose the same things
to be good or evil, that he doth; how canst thou but be gentle
unto him that is in an error?

XX. Fancy not to thyself things future, as though they were
present but of those that are present, take some aside, that thou
takest most benefit of, and consider of them particularly,
how wonderfully thou wouldst want them, if they were not present.
But take heed withal, lest that whilst thou dust settle thy
contentment in things present, thou grow in time so to overprize them,
as that the want of them (whensoever it shall so fall out) should be
a trouble and a vexation unto thee. Wind up thyself into thyself.
Such is the nature of thy reasonable commanding part, as that if it
exercise justice, and have by that means tranquillity within itself,