Dimitri

“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.”
― Epictetus, The Enchiridion

“This above all: to thine own self be true,
And it must follow, as the night the day,
Thou canst not then be false to any man.”
― William Shakespeare, Hamlet

“26. The will of nature may be learned from those things in which we don’t distinguish from each other. For example, when our neighbor’s boy breaks a cup, or the like, we are presently ready to say, “These things will happen.” Be assured, then, that when your own cup likewise is broken, you ought to be affected just as when another’s cup was broken. Apply this in like manner to greater things. Is the child or wife of another dead? There is no one who would not say, “This is a human accident.” but if anyone’s own child happens to die, it is presently, “Alas I how wretched am I!” But it should be remembered how we are affected in hearing the same thing concerning others.”
― Epictetus, The Enchiridion

“Consider first, man, what the matter is, and what your own nature is able to bear. If you would be a wrestler, consider your shoulders, your back, your thighs; for different persons are made for different things.”
― Epictetus, The Enchiridion