This self-love is the instrument of our preservation; it resembles the provision for the perpetuity of mankind: it is necessary, it is dear to us, it gives us pleasure, and we must conceal it.
Even in those cities which seem to enjoy the blessings of peace, and where the arts florish, the inhabitants are devoured by envy, cares and anxieties, which are greater plagues than any expirienced in a town when it is under siege.
I read these words which are the sum of all moral philosophy, and which cut short all the disputes of the casuists: When in doubt if an action is good or bad, refrain.
Every man can educate himself. It's shameful to put one's mind into the hands of those whom you wouldn't entrust with your money. Dare to think for yourself.