Substitution Cipher Puzzle

This quote is widely attributed to Albert Einstein, though its exact source in his writings has never been definitively identified. Regardless of its precise origin, the sentiment perfectly captures Einstein's approach to scientific inquiry — he often found his greatest breakthroughs by wrestling with the most challenging problems in physics.

The idea that obstacles contain hidden possibilities is a recurring theme across many philosophical traditions. From Stoic philosophy to modern entrepreneurship, the concept that adversity can be a catalyst for innovation and growth has proven remarkably durable. Einstein's own career exemplified this principle, as his revolutionary theories of relativity emerged from grappling with apparent contradictions in classical physics.