What is morally wrong can never be advantageous, even when it enables you to make some gain that you believe to be to your advantage. The mere act of believing that some wrongful course of action constitutes an advantage is pernicious.

O philosophy, you leader of life.

There is no one so old as to not think they may live a day longer.

A youth of sensuality and intemperance delivers over to old age a worn-out body.

The nearer I approach death the more I feel like one who is in sight of land at last and is about to anchor in one's home port after a long voyage.

There is nothing which wings its flight so swiftly as calumny, nothing is uttered with more ease; nothing is listened to with more readiness, nothing disbursed more widely.

A thankful heart is the greatest virtue.