Letters 69.1

I do not like you to change your headquarters and scurry about from one place to another. My reasons are,—first, that such frequent flitting means an unsteady spirit. And the spirit cannot through retirement grow into unity unless it has ceased from its inquisitiveness and its wanderings. To be able to hold your spirit in check, you must first stop the runaway flight of the body.

Seneca, Letters to Lucilius 69.1, translated by Richard Mott Gummere