Preach not to others what they should eat, but eat as becomes you and be silent. - Epictetus

Avoid banquets which are given by strangers and by ignorant persons.

Some things are in our control and others not. Things in our control are opinion, pursuit, desire, aversion, and, in a word, whatever are our own actions. Things not in our control are body, property, reputation, command, and, in one word, whatever are not our own actions. The things in our control are by nature free, unrestrained, unhindered; but those not in our control are weak, slavish, restrained, belonging to others. Remember, then, that if you suppose that things which are slavish by nature are also free, and that what belongs to others is your own, then you will be hindered. You will lament, you will be disturbed, and you will find fault both with gods and men. But if you suppose that only to be your own which is your own, and what belongs to others such as it really is, then no one will ever compel you or restrain you. Further, you will find fault with no one or accuse no one. You will do nothing against your will. No one will hurt you, you will have no enemies, and you not be harmed. Aiming therefore at such great things, remember that you must not allow yourself to be carried, even with a slight tendency, towards the attainment of lesser things. Instead, you must entirely quit some things and for the present postpone the rest. But if you would both have these great things, along with power and riches, then you will not gain even the latter, because you aim at the former too: but you will absolutely fail of the former, by which alone happiness and freedom are achieved. Work, therefore to be able to say to every harsh appearance, “You are but an appearance, and not absolutely the thing you appear to be.” And then examine it by those rules which you have, and first, and chiefly, by this: whether it concerns the things which are in our own control, or those which are not; and, if it concerns anything not in our control, be prepared to say that it is nothing to you.

"What then, is it not possible to be free from faults? It is not possible; but this is possible: to direct your efforts incessantly to being faultess. For we must be content if by never remitting this attention we shall escape at least a few errors. When you have said "Tomorrow I will begin to attend," you must be told that you are saying this: "Today I will be shameless, disregardful of time and place, mean;it will be in the power of others to give me pain, today I will be passionate and envious.

See how many evil things you are permitting yourself to do. If it is good to use attention tomorrow, how much better is it to do so today? If tomorrow it is in your interest to attend, much more is it today, that you may be able to do so tomorrow also, and may not defer it again to the third day.