Success is not sustainable if it is defined by how big you become or by growth for growth's sake. Success is very shallow if it doesn't have emotional meaning.
The idea of a margin of safety, a Graham precept, will never be obsolete. The idea of making the market your servant will never be obsolete. The idea of being objective and dispassionate will never be obsolete.
Music is a language that doesn’t speak in particular words. It speaks in emotions, and if it’s in the bones, it’s in the bones.