Epictetus · Fragments
Fragment 36
The truth is something immortal and eternal, and does not present us with a beauty that withers from the passage of time, nor a freedom of speech which can be taken away by justice, but it presents us with what is just and lawful, distinguishing the unlawful therefrom, and refuting it.
Epictetus, Discourses, Fragment 36, translated by W. A. Oldfather (1925–1928). The Stoic Library.