关于莎士比亚的友谊名言，综合权威资料整理如下：

一、友谊的本质与价值

1. "A friend is a second self."（朋友是另一个自我）

2. "The truest kind of friendship is when one is sick, the other is sick too."（真正的友谊是患难与共）

3. "Friendship is the medicine of the soul."（友谊是灵魂的良药）

二、友谊的考验与真伪

1. "Wealth does not test friendship, but poverty does."（财富不测友谊，贫穷却能试出真假）

2. "An enemy's counsel is often more valuable than a friend's lie."（敌人的建议往往比朋友的花言更珍贵）

3. "A friend in need is a friend indeed."（患难见真情）

三、友谊与忠诚

1. "Loyalty in friendship is not measured by words, but by actions."（友谊中的忠诚不在于言辞，而在于行动）

2. "Trust in friendship is like planting a garden； it requires patience and care to grow."（对友谊的信任如同种花，需耐心培育）

3. "A friend should be able to stand by you in both sunshine and storm."（朋友应在顺境逆境都支持你）

四、友谊与自我认知

1. "An enemy can show you your true colors, but a friend may deceive you."（敌人能揭示真实面目，朋友却可能欺骗）

2. "Through friends, we learn what we are."（通过朋友，我们认识自己）

3. "Do not be fooled by flattery； true friendship is based on mutual respect."（不要被奉承迷惑，真正的友谊源于尊重）

这些名言通过不同视角展现了莎士比亚对友谊的深刻理解，既有对本质的抽象概括，也有对现实关系的具体剖析。