لا يؤجّل شابٌّ دراسةَ الفلسفة، ولا يملّ منها شيخ؛ فلا يُقال إنّ الأوان مبكّرٌ أو متأخّر للعناية بصلاح النفس.

“Let no young man delay the study of philosophy, and let no old man become weary of it; for it is never too early nor too late to care for the well-being of the soul.”Epicurus — Letters: Principles Doctrines, and Vatican Sayings Translated, with an Introd. and Notes, by Russel M. Geor. Indianapolis Merrill (1964)