You will do the greatest service to the state, if you shall raise not the roofs of the houses, but the souls of the citizens. Fragment

But that which is useful is the better. Book III

Remember that there are two kinds of beauty: one of the soul and the other of the body. That of the soul displays its radiance in intelligence, in chastity, in good conduct, in generosity, and in good breeding, and all these qualities may exist in an ugly man. And when we focus our attention upon that beauty, not upon the physical, love generally arises with great violence and intensity. I am well aware that I am not handsome, but I also know that I am not deformed, and it is enough for a man of worth not to be a monster for him to be dearly loved, provided he has those spiritual endowments I have spoken of. Don Quixote

If there's any illness for which people offer many remedies, you may be sure that particular illness is incurable, I think. Seagull