I was always a big fan of Marcus Aurelius. Here is a brief thing bout him
Marcus Aurelius Antoninus Augustus (often referred to as “the wise”) was Emperor of the Roman Empire from 161 to his death in 180. He was the last of the “Five Good Emperors”, and is also considered one of the more important Stoic philosophers. His two decades as emperor were marked by near continual warfare. He was faced with a series of invasions from German tribes, and by conflicts with the Parthian Empire in the east. His reign also had to deal with an internal revolt in the east, led by Avidius Cassius.
How quickly all things disappear, in the universe the bodies themselves, but in time the remembrance of them; what is the nature of all sensible things, and particularly those which attract with the bait of pleasure or terrify by pain, or are noised abroad by vapoury fame; how worthless, and contemptible, and sordid, and perishable, and dead they are- all this it is the part of the intellectual faculty to observe. To observe too who these are whose opinions and voices give reputation; what death is, and the fact that, if a man looks at it in itself, and by the abstractive power of reflection resolves into their parts all the things which present themselves to the imagination in it, he will then consider it to be nothing else than an operation of nature; and if any one is afraid of an operation of nature, he is a child. This, however, is not only an operation of nature, but it is also a thing which conduces to the purposes of nature. To observe too how man comes near to the deity, and by what part of him, and when this part of man is so disposed.
These are the properties of the rational soul: it sees itself, analyses itself, and makes itself such as it chooses; the fruit which it bears itself enjoys- for the fruits of plants and that in animals which corresponds to fruits others enjoy- it obtains its own end, wherever the limit of life may be fixed. Not as in a dance and in a play and in such like things, where the whole action is incomplete, if anything cuts it short; but in every part and wherever it may be stopped, it makes what has been set before it full and complete, so that it can say, I have what is my own. And further it traverses the whole universe, and the surrounding vacuum, and surveys its form, and it extends itself into the infinity of time, and embraces and comprehends the periodical renovation of all things, and it comprehends that those who come after us will see nothing new, nor have those before us seen anything more, but in a manner he who is forty years old, if he has any understanding at all, has seen by virtue of the uniformity that prevails all things which have been and all that will be. This too is a property of the rational soul, love of one’s neighbour, and truth and modesty, and to value nothing more more than itself, which is also the property of Law. Thus then right reason differs not at all from the reason of justice.