Niels Bohr — "Atomic physics has taught us that we cannot be observers without at the same tim…"

"There are trivial truths and great truths. The opposite of a trivial truth is plainly false. The opposite of a great truth is also true."

"One must be clear that, as far as the atoms are concerned, we are not dealing with an analogy to everyday experience but with something quite different."

"Physics is not about how the world is, it is about what we can say about the world."

"The purpose of science is not to answer ultimate questions, but to make progress in understanding."

"The future of humanity depends on our ability to understand and harness the power of science."