Montene

“Don't explain your philosophy. Embody it.”
― Epictetus

“If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.”
― Marcus Aurelius, Meditations

“Don't just say you have read books. Show that through them you have learned to think better, to be a more discriminating and reflective person. Books are the training weights of the mind. They are very helpful, but it would be a bad mistake to suppose that one has made progress simply by having internalized their contents.”
― Epictetus, The Art of Living: The Classical Manual on Virtue, Happiness and Effectiveness

“Circumstances don't make the man, they only reveal him to himself.”
― Epictetus