The observing mind is not a physical system, it cannot interact with any physical system. And it might be better to reserve the term "subject" for th… - Erwin Schrödinger

I am very astonished that the scientific picture of the real world around me is very deficient. It gives us a lot of factual information, puts all of our experience in a magnificently consistent order, but it is ghastly silent about all and sundry that is really near to our heart that really matters to us. It cannot tell us a word about red and blue, bitter and sweet, physical pain and physical delight; it knows nothing of beautiful and ugly, good or bad, God and eternity. Science sometimes pretends to answer questions in these domains but the answers are very often so silly that we are not inclined to take them seriously.

By the way, I never realized that to be nonbelieving, to be an atheist, was a thing to be proud of. It went without saying as it were.

...Our creed is indeed a queer creed. You others, Christians (and similar people), consider our ethics much inferior, indeed abominable. There is that little difference. We adhere to ours in practice, you don't.

Boltzmann’s equation is well illustrated by that example. The gradual ‘spreading out’ of the sugar over all the water available increases the disorder D), and hence (since the logarithm of D increases with D) the entropy.