关于友谊的经典名言有很多，以下是一些英文和古文的经典名言：

英文经典名言：

患难见真情。—— A friend in need is a friend indeed.

朋友丰富人生。—— Friends enrich life.

友谊是心灵的结合。—— Friendship is the union of souls.

友谊永远是美德的辅佐。—— Friendship is always the aid of virtue.

友谊使欢乐倍增，悲痛锐减。—— Friendship doubles joys and cuts sorrow in half.

友谊是一棵可以庇荫的树。—— Friendship is a tree that provides shade.

友谊是一种和谐的平等。—— Friendship is a harmonious equality.

朋友一直都是我们的另一半。—— Friends are always our other half.

仇恨终将泯灭，友谊万古长青。—— Hatred will vanish, but friendship will last forever.

真金不怕火炼，患难考验友谊。—— True gold fears not the fire, adversity tests friendship.

要结识朋友，自己得先是个朋友。—— To make friends, one must first be a friend.

友情的语言，不是文字，而是意义。—— The language of friendship is not words but meaning.

友谊是一个神圣而又古老的名字。—— Friendship is a sacred and ancient name.

谅解、支援和友谊，比什么都重要。—— Understanding, support, and friendship are more important than anything else.

患难之中的友谊，能够使患难舒缓。—— Friendship in adversity can alleviate suffering.

古文经典名言：

相见情已深，未语可知心。—— When we meet each other, we can know each other without words.

朋友如甜瓜，百试始得一。—— A friend is like a melon； it takes a hundred trials to find one.

布衣之交不可忘。—— We should not forget the friendship between cloth and clothes.

不到患难时，永远不能认识真正的朋友。—— A friend is never known till a man has need.

朋友是第二个自我。—— A friend is a second self.

朋友之间不分彼此。—— Between friends all is common.

广交友，无深交。—— Make many friends, but keep few deep ones.

友谊是人生的调味品，也是人生的止痛药。—— Friendship is the spice of life, as well as the painkiller of life.

无论友情还是爱情，我要的是一世，而不是一时。—— Whether it is friendship or love, I want a lifetime, not a moment.

这些名言都表达了友谊的重要性和美好，希望这些建议对你有所帮助。