1．Mutual forgiveness of each vice，such are the gates of Paradise.
—William Black
相互宽容对方的缺点，乃是通向天堂之门。 ——威廉·布莱克
2．A friend is，as it were，a second self. —Cicero
可以说朋友是另一个自我。 ——西塞罗
3．Betraying a trust is a very quick and painful way to terminate a friendship.
—Ralph Waldo Emerson
背信弃义会迅速而痛苦地断送友谊。
——拉尔夫·沃尔多·爱默生
4．He that will not allow his friend to share the prize must not expect him to share the danger. —Aesop
不肯让朋友共享果实的人，不要指望朋友与他共患难。
——伊索
