To pursue the impossible is madness: but it is impossible for evil men not to do things of this sort.

Some suggestions for you :

Consider the nature of all worldly sensible things; of those especially, which either ensnare by pleasure, or for their irksomeness are dreadful, or for their outward lustre and show are in great esteem and request, how vile and contemptible, how base and corruptible, how destitute of all true life and being they are.

The honest and good man ought to be exactly like a man who smells strong, so that the bystander as soon as he comes near him must smell whether he choose or not.

Thus thou must use to keep thyself to the first motions and apprehensions of things, as they present themselves outwardly; and add not unto them from within thyself through mere conceit and opinion.

How good it is, when you have roast meat or suchlike foods before you, to impress on your mind that this is the dead body of a fish, this the dead body of a bird or pig.

To feel affection for people even when they make mistakes is uniquely human. You can do it, if you simply recognize: that they're human too, that they act out of ignorance, against their will, and that you'll both be dead before long. And, above all, that they haven't really hurt you. They haven't diminished your ability to choose.

Let not the general representation unto thyself of the wretchedness of this our mortal life, trouble thee.

A society of equal laws, governed by equality of status and of speech, and of rulers who respect the liberty of their subjects above all else.

He blind, who cannot see with the eyes of his understanding.

Call to mind the whole of Substance of which you have a very small portion, and the whole of time whereof a small hair's breadth has been determined for you, and of the chain of causation whereof you are how small a link.

The freedom to do only what God wants, and accept whatever God sends us.

It is crazy to want what is impossible. And impossible for the wicked not to do so.

One is a careful distinction between things which are in our power and things which are not. Desire and dislike, opinion and affection, are within the power of the will. whereas health, wealth, honour, and other such are generally not so. The Stoic was called upon to control his desires and affections, and to guide his opinion.

The time is at hand when you will have forgotten everything; and the time is at hand when all will have forgotten you. Always reflect that soon you will be no one, and nowhere.

It is the act of an ill-instructed man to blame others for his own bad condition; it is the act of one who has begun to be instructed, to lay the blame on himself; and of one whose instruction is completed, neither to blame another, nor himself.