Friendship is like a bottle of wine. The longer it is sealed, the higher its value becomes; but once it is unsealed, it is still enough for an alcoholic to drink too much. ——Liang Xiaosheng.

(1) And so on: when choosing friends, you must be cautious and outright selfish. They will put on the mask of friendship, but set traps to trap you. ——Krylov.

(2) Friendship is the union of souls. This union can be divorced. It is a tacit contract between two sensitive and upright people. ——Voltaire.

Friendship is a Chinese word, pronounced yǒuyì, which refers to the deep feelings and intimate relationship between friends.