Any profound view of the world is mysticism. It has, of course, to deal with life and the world, both of which are nonrational entities. Albert Schweitzer

Creating a new theory is not like destroying an old barn and erecting a skyscraper in its place. It is rather like climbing a mountain, gaining new and wider views, discovering unexpected connections between our starting point and its rich environment. Albert Einstein

One can travel this world and see nothing. To achieve understanding it is necessary not to see many things, but to look hard at what you do see. GIORGIO MORANDI