Letter 72 — On Business as the Enemy of Philosophy (§3)

“But the study of philosophy is not to be postponed until you have leisure; everything else is to be neglected in order that we may attend to philosophy, for no amount of time is long enough for it, even though our lives be prolonged from boyhood to the uttermost bounds of time allotted to man. It makes little difference whether you leave philosophy out altogether or study it intermittently; for it does not stay as it was when you dropped it, but, because its continuity has been broken, it goes back to the position in which it was at the beginning, like things which fly apart when they are stretched taut.”