关于友情的英文句子

16、A real friend never gets in your way, unleyou happen to be on the way down.(真正的朋友决不会挡住你的去路，除非你在走下坡路时)
17、A friend is never known till a man has need.(不到患难时，永远不能认识真正的朋友)
18、Friendship is like a plant of slow growth.(友谊像生长着的植物，是慢慢地建立起来的)
19、Choose an author as you choose a friend.(选书如择友)
20、Friendship is to be strengthened by truth and devotion.(友谊要以真实和忠诚来巩固)