Through not observing what is in the mind of another a man has seldom been seen to be unhappy; but those who do not observe the movements of their own minds must of necessity be unhappy.

This thou must always bear in mind, what is the nature of the whole, and what is my nature, and how this is related to that, and what kind of a part it is of what kind of a whole, and that there is no one who hinders thee from always doing and saying the things which are according to the nature of…

Theophrastus, in his comparison of bad acts—such a comparison as one would make in accordance with the common notions of mankind—says, like a true philosopher, that the offenses which are committed through desire are more blamable than those which are committed through anger.…

Since it is possible that thou mayest depart from life this very moment, regulate every act and thought accordingly.…

How quickly all things disappear,—in the universe the bodies themselves, but in time the remembrance of them.…

Nothing is more wretched than a man who traverses everything in a round, and pries into the things beneath the earth, as the poet says, and seeks by conjecture what is in the minds of his neighbors, without perceiving that it is sufficient to attend to the daemon within him, and to reverence it…

Though thou shouldest be going to live three thousand years and as many times ten thousand years, still remember that no man loses any other life than this which he now lives, nor lives any other than this which he now loses. The longest and shortest are thus brought to the same.…

Remember that all is opinion. For what was said by the Cynic Monimus is manifest: and manifest too is the use of what was said, if a man receives what may be got out of it as far as it is true.

The soul of man does violence to itself, first of all, when it becomes an abscess, and, as it were, a tumor on the universe, so far as it can. For to be vexed at anything which happens is a separation of ourselves from nature, in some part of which the natures of all other things are contained.…

Of human life the time is a point, and the substance is in a flux, and the perception dull, and the composition of the whole body subject to putrefaction, and the soul a whirl, and fortune hard to divine, and fame a thing devoid of judgment.…

We ought to consider not only that our life is daily wasting away and a smaller part of it is left, but another thing also must be taken into the account, that if a man should live longer, it is quite uncertain whether the understanding will still continue sufficient for the comprehension of…

We ought to observe also that even the things which follow after the things which are produced according to nature contain something pleasing and attractive.…

Hippocrates, after curing many diseases, himself fell sick and died. The Chaldaei foretold the deaths of many, and then fate caught them too.…

Do not waste the remainder of thy life in thoughts about others, when thou dost not refer thy thoughts to some object of common utility.…

Labor not unwillingly, nor without regard to the common interest, nor without due consideration, nor with distraction; nor let studied ornament set off thy thoughts, and be not either a man of many words, or busy about too many things.…

If thou findest in human life anything better than justice, truth, temperance, fortitude, and, in a word, anything better than thy own mind's self-satisfaction in the things which it enables thee to do according to right reason, and in the condition that is assigned to thee without thy own choice;…

Never value anything as profitable to thyself which shall compel thee to break thy promise, to lose thy self-respect, to hate any man, to suspect, to curse, to act the hypocrite, to desire anything which needs walls and curtains: for he who has preferred to everything else his own intelligence and…

In the mind of one who is chastened and purified thou wilt find no corrupt matter, nor impurity, nor any sore skinned over. Nor is his life incomplete when fate overtakes him, as one may say of an actor who leaves the stage before ending and finishing the play.…

Reverence the faculty which produces opinion. On this faculty it entirely depends whether there shall exist in thy ruling part any opinion inconsistent with nature and the constitution of the rational animal.…

Throwing away then all things, hold to these only which are few; and besides, bear in mind that every man lives only this present time, which is an indivisible point, and that all the rest of his life is either past or it is uncertain.…

To the aids which have been mentioned let this one still be added: Make for thyself a definition or description of the thing which is presented to thee, so as to see distinctly what kind of a thing it is in its substance, in its nudity, in its complete entirety, and tell thyself its proper name,…

If thou workest at that which is before thee, following right reason seriously, vigorously, calmly, without allowing anything else to distract thee, but keeping thy divine part pure, as if thou shouldst be bound to give it back immediately; if thou holdest to this, expecting nothing, fearing…

As physicians have always their instruments and knives ready for cases which suddenly require their skill, so do thou have principles ready for the understanding of things divine and human, and for doing everything, even the smallest, with a recollection of the bond which unites the divine and…

No longer wander at hazard; for neither wilt thou read thy own memoirs, nor the acts of the ancient Romans and Hellenes, and the selections from books which thou wast reserving for thy old age.…