If a man be gracious and courteous to strangers,it shows he is citizen of the world.
如果一個人對陌生人能溫文儒雅,這表明他是一個世界公民。——弗朗西斯·培根(英國思想家)
Be nice to people on your way up because you'll meet them on your way down.
上坡時,對別人好一些,因爲下坡時,你還會遇見他們。——威爾遜·米茨納(美國演員)