Ten thousand taels of gold are easy to come by, but a close friend is hard to find. ——Cao Xueqin

When people help me, I will never forget it; when I help others, I won’t forget it. ——Hua Luogeng

Those who praise us behind our backs are our good friends. ——Cervantes

If you want to have friends, you must first have enough friends.

——Emerson