
The Stoics and Epicureans agree philosophy is the way.
Philosophiae servias oportet, ut tibi contingat vera libertas.
It is necessary that you must serve philosophy, so that you may gain true freedom.
Philosophiae: to philosophy
Servias: may you serve, you must serve
Oportet: it is necessary
Ut contingat: so that it may happen
Tibi: to you
Vera libertas: true freedom