Looking for Some Pith

Looking for something pithy to say. Therefore I must be searching I would surmise for a tangible item that has enough pith to be used to fuel my pithy saying. This is very deep and even Albert Einstein when he was alive (Al we hardly knew ye) struggled with understanding the pith concept. All he ever kept rambling on about was some stuff about e=mc2. That and finding a placed that served good Hot Pastrami on Rye.