Do good even to the wicked; it is as well to shut a dog's mouth with a crumb.
Poverty snatches the reins out of the hand of piety.
The bad fortune of the good turns their faces up to heaven; the good fortune of the bad bows their heads down to the earth.
Nothing is so good for an ignorant man as silence; and if he was sensible of this he would not be ignorant.
Have patience. Everything is difficult before it is easy.
Whoever acquires knowledge but does not practice it is as one who ploughs but does not sow.