The mind has a strange gravity to it. Left alone, it drifts toward the empty place at the table — the thing not yet arrived, the plan gone wrong, the one guest who did not come. Among the sayings gathered from Epictetus, the former slave who taught in a bare room in exile, one line answers this drift directly:
He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.
It matters that this came from him. Epictetus had been owned by another man, walked with a permanent limp from those years, and kept almost nothing when he finally taught for himself. The abundance he pointed to was never a matter of possessions. He was describing an operation of attention available to anyone, in any room, however sparse.
The wisdom here is not cheerfulness worn as a mask. It is a correction of where the eyes rest. Grieving for what is absent takes no effort at all; it arrives unbidden, needs no practice, feeds itself. Rejoicing in what is present asks for a deliberate turning of the head. Picture the ordinary evening: a warm room, bread on the table, a friend still living and within reach — and a whole hour spent rehearsing the single thing that soured the afternoon. Epictetus built his entire school on the gap between what a life is given and how that life is met.
Two generations later, an emperor who had studied the same teachers kept a private notebook and wrote himself a nearly identical instruction. In the Meditations, Book 7, section 27, Marcus Aurelius tells himself: Do not indulge in dreams of having what you have not, but reckon up the chief of the blessings you do possess, and then thankfully remember how you would crave for them if they were not yours. Notice the second half — not merely listing what is there, but briefly imagining its loss in order to feel its true weight. The most powerful man alive still had to remind himself to count. The pull toward lack spares no one, not even the one who already holds the world.
Both describe the same modest act: an inventory taken in the honest direction. The gaze slides toward absence on its own; the discipline is to draw it back to what is present and hold it there long enough to actually register the warmth of it. This is not a mood that visits. It is a muscle, and it answers to use.
The empty chair is real. So is everyone still seated around it. Attention is the only thing that decides which of the two ends up filling the night.