Humility in Philosophy and Science

One common trait among many of our civilization’s great thinkers is their humility.   Perhaps this started with Socrates and the line for which he’s so well known: “I know that I know nothing,” meaning that true wisdom is knowing you don’t know anything.

About 2000 years later, in the 1660s, we have this quote at left from Isaac Newton.

Of course, not all great minds through the ages were so modest.  Take, for example, the physicists of the late 19th Century who were convinced that everything of any real importance in their field had already been discovered.  A few years later we have Einstein, followed by quantum mechanics.  Oops!  That belief didn’t age well.

All this raises a series of unanswerable questions. Is there an end to physics, i.e. a point at which we honestly do have our arms wrapped around cosmology and all our puzzles have been solved: wormholes, time travel, dark energy and matter, string theory, unified field theory, parallel universes, another universe before the big bang?  If there is such an end, how close are we to it?