地理学是研究地球作为人类家园的科学。
出自《三国演义》,梁羽生在《七剑下天山》中引用
最好的领导者是那些多听少说、多做少承诺的人。
The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.