Friendship is like money, ...

Friendship is like money, easier made than kept.
 Samuel Butler

Quotes from the same author

Men are seldom more commonplace than on supreme occasions.
 Samuel Butler
Every man's work, whether it be literature, or music or pictures or architecture or anything else, is always a portrait of himself.
 Samuel Butler
All progress is based upon a universal innate desire on the part of every organism to live beyond its income.
 Samuel Butler
You can do very little with faith, but you can do nothing without it.
 Samuel Butler
Flying. Whatever any other organism has been able to do man should surely be able to do also, though he may go a different way about it.
 Samuel Butler