以下是一些有關友誼的英文佳句：
1. "Friendship is like a river, steady and deep, flowing from moments shared and truths told."
2. "A true friend is one who walks in when the rest of the world walks out."
3. "A friend is like a flower in the garden of life; some bloom more fragrant than others."
4. "Friendship is not a matter of proportion, but of love and loyalty."
5. "True friendship is like a tree planted by streams of water, which yields its fruit in its season."
6. "Without true friendship, life would be like a journey without a map."
7. "A friend is someone who knows all about you and still loves you."
8. "Friendship is like wine; it gets better with age."
9. "A friend in need is a friend indeed."
10. "Friendship is not about how much you have in common, but about how much you care for each other."
以上句子旨在表達友誼的重要性，以及朋友之間的信任、支持和共享的重要性。