If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.
Interpretation
Understanding quantum physics is so complex that it can overwhelm those who truly grasp its principles.
Niels Bohr emphasizes that the profound and often counterintuitive nature of quantum physics is such that a true understanding leads to a sense of wonder or even confusion. If one feels unfazed by the complexities of quantum mechanics, it likely indicates that they have not fully grasped its intricacies and the philosophical implications it carries.
In practice
During a lecture on advanced physics, a professor might quote Bohr to illustrate the challenging nature of quantum mechanics.
When asked ... [about] an underlying quantum world, Bohr would answer, 'There is no quantum world. There is only an abstract quantum physical description. It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about Nature.'
An independant reality in the ordinary physical sense can neither be ascribed to the phenomenon nor to the agencies of observation.
An expert is a man who has made all the mistakes which can be made, in a narrow field.
Those who are not shocked when they first come across quantum theory cannot possibly have understood it.
When searching for harmony in life one must never forget that in the drama of existence we are ourselves both actors and spectators.
And anyone who thinks they can talk about quantum theory without feeling dizzy hasn't yet understood the first thing about it.
Testing shows the presence, not the absence of bugs.
What sense would it make or what would it benfit a physician if he discovered the origin of the diseases but could not cure or alleviate them?
Eureka! Eureka!_x000D_ _x000D_ Supposed to have been his cry, jumping naked from his bath and running in the streets, excited by a discovery about water displacement to solve a problem about the purity of a gold crown.
A star is drawing on some vast reservoir of energy by means unknown to us. This reservoir can scarcely be other than the subatomic energy which, it is known exists abundantly in all matter; we sometimes dream that man will one day learn how to release it and use it for his service. The store is well nigh inexhaustible, if only it could be tapped. There is sufficient in the Sun to maintain its output of heat for 15 billion years.
Clearly, we are a species that is well connected to other species. Whether or not we evolve from them, we are certainly very closely related to them. A series of mutations could change us into all kinds of intermediate species. Whether or not those intermediate species are provably in the past, they could easily be in our future.
Scientific understanding is often beautiful, a profoundly aesthetic experience which gives pleasure not unlike the reading of a great poem.
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