以下是一些有關友情的英文佳句：
1. "Friendship is like a river of clear and beautiful water, giving you peace and comfort."
2. "A true friend is someone who reaches out a hand at a time of need."
3. "Friendship is like a plant that grows and flourishes without any effort on our part."
4. "Friendship is like a tree, it needs nurturing and care to flourish."
5. "The best way to have a friend is to be one yourself."
6. "True friendship is a bond that cannot be broken, even in the face of adversity."
7. "Friendship is a treasure that cannot be measured by its cost."
8. "When you are down, your friend lifts you up; when you are sad, your friend cheers you up; when you are in trouble, your friend helps you out."
9. "A friend in need is a friend indeed."
10. "Without friends, life would be a world without color and laughter."
這些句子表達了友情的重要性，以及朋友在我們生活中的積極影響。