1. A friend in need is a friend indeed.
1.患難見真情
A friend that sticks with you and helps you when you’re in trouble is a true friend. For example, if you have a friend who helps you even when you have nothing to give back to them at that moment, they are a true friend.
當你遇到困難時，一個愿意支持你并幫助你的朋友才是真正的朋友。如果在你一無所有，窮途末路的時候，還有人愿意幫助你，那他則是真心的患難之交。
2. A friend to all is a friend to none.
2.濫交友者無朋友
A friendship with a person who is friends with everyone is not unique or truly valuable. You can’t count on them. They won’t protect you or stick up for you when you have problems with others because they’re also friends with the other people too.

和每個人都是好朋友的朋友不是獨一無二的，也不是真正有價值的。你不能指望他們。當你和別人有沖突的時候，他們不會保護你，也不會支持你，因為他們也是別人的朋友。

3. A friend’s eye is a good mirror.
3.朋友是最好的鏡子
Sometimes we don’t see ourselves as clearly as we do others. A good friend will truthfully tell you whether you do something good or bad which is valuable to have.
有時我們并不能像他人看自己一樣認清自我，一個好朋友會誠實地告訴你，你做的是好還是壞，這是有價值的。
4. A man is known by his friends.
4.視其友，知其人
People judge you by the company you keep. Others will look at your friends and make assumptions about you based on the friends you choose to have in your life.

人們會通過你結交的朋友來判斷你的為人。人們會看你的朋友是怎樣的，根據你選擇的朋友對你做出預估。

They also mean to say that it’s important who you pick as your friends because it affects your reputation.
他們的意思也是說，你選誰當朋友很重要，因為這會影響你的聲譽。
Also known as: “A man is known by the company he keeps.”
這個諺語也可以這樣說：“視其友，知其人。”
5. Birds of a feather flock together.
5.物以類聚，人以群分
People who like the same things and have similar personalities tend to enjoy spending time together. For example, different teenagers who like listening to rock music and skateboarding will all become friends and enjoy spending time together.
喜歡相同事物、性格相似的人喜歡在一起歡度時光。例如，喜歡聽搖滾樂和玩滑板的青少年會成為朋友，一起享受時光。
6. False friends are worse than open enemies.
6.明槍易躲，暗箭難防
It’s better to at least know who your enemy is, instead of believing someone is your friend only to find out that they aren’t.

至少知道你的敵人是誰，而不是一味地相信所謂的朋友，最終卻發現他們并不可信。

At least when you know who your enemy is, you know not to trust them. Whereas if the person you are counting on won’t be there when you need them, it would be better to know you can’t count on them sooner rather than later.

當你知道你的敵人是誰時，至少你清楚地明白不能相信他們。然而，如果你信任的人在你需要的時候不會在你身邊，那么你最好知道早點就看清你不能指望的朋友是誰。

7. Friendship is like money, easier made than kept.
7.友誼如金錢，得來容易保持難
It’s easy to make friends when you first meet someone. But over time to develop a real friendship takes effort and hard work. Similarly to how keeping money is harder than making it.
初次見面時交朋友很容易。但隨著時間的推移，建立真正的友誼需要用心和努力。同樣，存錢比賺錢更難。
8. A friend at hand is better than a relative at a distance.
8.遠親不如近鄰
Close companions in your life are more valuable than your family if you are not close to them.
如果你離家人較遠的話，生命中的摯友有時候比你的家人更可貴。
This phrase is similar to the idea that your neighbor is more important in your life than your parents if they life far away. Because, if something happened to you, your neighbor could be there to help you.
這句話類似于如果你父母住的離你比較遠，那么你的鄰居在生活中比你的父母更重要。因為，一旦你發生了什么事，你的鄰居可能很快就能幫到你。
9. Lend your money. Lose your friend.
9.賠了夫人又折兵
You should never let your friends borrow your money. If you do lend them money, there is a big chance that you will either have problems with them paying you back, or they may become upset with you when you ask for your money back.
你永遠不應該讓你的朋友借你錢。如果你借錢給他們，要么很有可能他們沒辦法還錢，要么當你要求還錢時，他們可能會對你不滿。
10. A man who has friends must himself be friendly.
10.想要交朋友，先要以誠待人
Friendship is created through two people. A friendship won’t last long if only one person makes an effort. Just like any relationship, both sides of a friendship must actively work at the friendship for it to continue and develop.

友誼是由兩個人共同創造的。如果只有一個人努力，友誼便不會長久。就像任何關系一樣，朋友雙方都必須積極地為保持友誼而付出努力，這樣才能讓友誼繼續發展。

（來源：滬江英語）