Diogenes of Sinope

Diogenes of Sinope, known for his school of thought as Cynicism, was once approached by Alexander the great.  The latter admired him and asked if he could do anything for him.  Being asked by the king, Diogenes could have asked for anything and Alexander would certainly have granted it to him.  All that Diogenes said was, "Yes, stand aside.  You're blocking my sunlight!"

It is to this famous Cynic, attributed the quote

He has the most who is most content with the least.  

Though Diogenes himself may have uttered in cynicism or is cited by several people as 'demotivational', this quote is quite true and meaningful.  It is a rather good summary of evangelical poverty (understood in its minimalistic sense).