When friendship is settled, you must trust; before friendship is formed, you must pass judgment.

Nature has created both day & night, therefore one who reposes should act and one who acts should take repose.

Letter 3 : On True and False Friendship

1. You have sent a letter to me through the hand of a “friend” of yours, as you call him. And in your very next sentence you warn me not to discuss with him all the matters that concern you, saying that even you yourself are not accustomed to do this; in other words, you have in the same letter affirmed and denied that he is your friend.

2. Now if you used this word of ours in the popular sense, and called him “friend” in the same way in which we speak of all candidates for election as “honorable gentlemen,” and as we greet all men whom we meet casually, if their names slip us for the moment, with the salutation “my dear sir,” – so be it. But if you consider any man a friend whom you do not trust as you trust yourself, you are mightily mistaken and you do not sufficiently understand what true friendship means. Indeed, I would have you discuss everything with a friend; but first of all discuss the man himself. When friendship is settled, you must trust; before friendship is formed, you must pass judgment. Those persons indeed put last first and confound their duties, who, violating the rules of Theophrastus, judge a man after they have made him their friend, instead of making him their friend after they have judged him. Ponder for a long time whether you shall admit a given person to your friendship; but when you have decided to admit him, welcome him with all your heart and soul. Speak as boldly with him as with yourself.

3. As to yourself, although you should live in such a way that you trust your own self with nothing which you could not entrust even to your enemy, yet, since certain matters occur which convention keeps secret, you should share with a friend at least all your worries and reflections. Regard him as loyal, and you will make him loyal. Some, for example, fearing to be deceived, have taught men to deceive; by their suspicions they have given their friend the right to do wrong. Why need I keep back any words in the presence of my friend? Why should I not regard myself as alone when in his company?
4. There is a class of men who communicate, to anyone whom they meet, matters which should be revealed to friends alone, and unload upon the chance listener whatever irks them. Others, again, fear to confide in their closest intimates; and if it were possible, they would not trust even themselves, burying their secrets deep in their hearts. But we should do neither. It is equally faulty to trust everyone and to trust no one. Yet the former fault is, I should say, the more ingenuous, the latter the more safe.
5. In like manner you should rebuke these two kinds of men, – both those who always lack repose, and those who are always in repose. For love of bustle is not industry, – it is only the restlessness of a hunted mind. And true repose does not consist in condemning all motion as merely vexation; that kind of repose is slackness and inertia.
6. Therefore, you should note the following saying, taken from my reading in Pomponius: “Some men shrink into dark corners, to such a degree that they see darkly by day.” No, men should combine these tendencies, and he who reposes should act and he who acts should take repose. Discuss the problem with Nature; she will tell you that she has created both day and night.

https://en.wikisource.org/wiki/Moral_letters_to_Lucilius/Letter_3

Contented poverty is an honorable estate : ‘It is not, who has too little, but who craves more, that is poor’

Everywhere means nowhere.
1st, have what is necessary ; 2nd, have what is enough

Letter 2 : On discursiveness in reading

1. Judging by what you write me, and by what I hear, I am forming a good opinion regarding your future. You do not run hither and thither and distract yourself by changing your abode; for such restlessness is the sign of a disordered spirit. The primary indication, to my thinking, of a well-ordered mind is a man’s ability to remain in one place and linger in his own company.

2. Be careful, however, lest this reading of many authors and books of every sort may tend to make you discursive and unsteady. You must linger among a limited number of master thinkers, and digest their works, if you would derive ideas which shall win firm hold in your mind. Everywhere means nowhere. When a person spends all his time in foreign travel, he ends by having many acquaintances, but no friends. And the same thing must hold true of men who seek intimate acquaintance with no single author, but visit them all in a hasty and hurried manner.

3. Food does no good and is not assimilated into the body if it leaves the stomach as soon as it is eaten; nothing hinders a cure so much as frequent change of medicine; no wound will heal when one salve is tried after another; a plant which is often moved can never grow strong. There is nothing so efficacious that it can be helpful while it is being shifted about. And in reading of many books is distraction. Accordingly, since you cannot read all the books which you may possess, it is enough to possess only as many books as you can read.
4. “But,” you reply, “I wish to dip first into one book and then into another.” I tell you that it is the sign of an overnice appetite to toy with many dishes; for when they are manifold and varied, they cloy but do not nourish. So you should always read standard authors; and when you crave a change, fall back upon those whom you read before. Each day acquire something that will fortify you against poverty, against death, indeed against other misfortunes as well; and after you have run over many thoughts, select one to be thoroughly digested that day.

5. This is my own custom; from the many things which I have read, I claim some one part for myself. The thought for today is one which I discovered in Epicurus; for I am wont to cross over even into the enemy’s camp, – not as a deserter, but as a scout.

6. He says: “Contented poverty is an honorable estate.” Indeed, if it be contented, it is not poverty at all. It is not the man who has too little, but the man who craves more, that is poor. What does it matter how much a man has laid up in his safe, or in his warehouse, how large are his flocks and how fat his dividends, if he covets his neighbor’s property, and reckons, not his past gains, but his hopes of gains to come? Do you ask what is the proper limit to wealth? It is, first, to have what is necessary, and, second, to have what is enough.

https://en.wikisource.org/wiki/Moral_letters_to_Lucilius/Letter_2