The more arguments you win, the less friends you will have

A friend who shares is a friend who cares.

A good cause is often injured more by ill-timed efforts of its friends than by the arguments of its enemies. Persuasion, perseverance and patience are the best advocates on questions depending on the will of others.

Who makes himself a sheep will be eaten by the wolves

You will always be lucky if you know how to make friends with strange cats

Only your real friends will tell you when your face is dirty.