英语格言警句 以下是整理后的英语格言警句及释义：A contented mind is the greatest blessing a man can enjoy in this world.知足是人生在世最大的幸事。A friend is， as it were， a second self.- 朋友就如同另一个自我。 A man should keep his friendship in constant repair.- 人应不断维护友谊，使其长久。 A true friend is for ever a friend.- 真正的朋友永远不会离去。