The duty of a true patriot is to protect his country from its government.

The principle of asceticism never was， nor ever can be， consistently pursued by any living creature.

城市的穷人就像树的根；看不见，但对它的生命至关重要。

出自先秦《荀子·劝学》。定居一定要选择适当的邻里，交游一定要接近贤士。说明要加强道德修养，就应该注意周围环境。

人生应该树立目标，否则你的精力会白白浪费。