If you aren't confused by quantum mechanics, you haven't really understood it.
Interpretation
Understanding quantum mechanics involves confronting confusion and complexity.
Niels Bohr's quote suggests that the intricacies and paradoxes of quantum mechanics are inherently baffling, and true comprehension requires grappling with these uncertainties. It emphasizes that confusion is not a sign of ignorance, but rather a fundamental part of mastering such a complex subject.
In practice
In a lecture about quantum physics, you could use this quote to highlight the complexity of the subject.
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.
The law of floatation was not discovered by contemplating the sinking of things, but by contemplating the floating of things which floated naturally, and then intelligently asking why they did so.
Our job is not to predict the future. Rather, it's to suggest all the possible futures - so that society can make informed decisions about where we want to go.
Of course there are worlds. Millions of them! Every star you see has worlds, and most of those you don't see.
Those who have learned to walk on the threshold of the unknown worlds, by means of what are commonly termed par excellence the exact sciences, may then, with the fair white wings of imagination, hope to soar further into the unexplored amidst which we live.
Science is rooted in the will to truth. With the will to truth it stands or falls. Lower the standard even slightly and science becomes diseased at the core. Not only science, but man. The will to truth, pure and unadulterated, is among the essential conditions of his existence; if the standard is compromised he easily becomes a kind of tragic caricature of himself.
Supervised learning works so well when you have the right data set, but ultimately unsupervised learning is going to be a really important component in building really intelligent systems - if you look at how humans learn, it's almost entirely unsupervised.
Subscribe for the occasional hand-picked quote. No noise.