Quote by J. Robert Oppenheimer
The optimist thinks that this is the best of all possible worlds; the pessimist knows it.
Summary
This quote highlights the difference in perspective between optimists and pessimists regarding the state of the world. While optimists believe that the world we live in is the best one imaginable, pessimists are acutely aware of its flaws and imperfections. The optimist's viewpoint reflects a hopeful and positive outlook, while the pessimist's viewpoint suggests a realistic acknowledgement of the world's problems and challenges.