Apparently via Mother Teresa. Always keep these in mind and strive towards living them.
To speak as little as possible of one's self.
To mind one's own business.
Not to want to manage other people's affairs.
To accept contradictions and correction cheerfully.
To pass over the mistakes of others.
To accept insults and injuries.
To accept being slighted, forgotten and disliked.
To be kind and gentle even under provocation.
Never to stand on one's dignity.
To choose always the hardest.