In aphorism 335 in the Gay Science, that book or montage of aphorisms, written both carefully and carelessly; Nietzsche writes:
Long live Physics!...what? You admire the categorical imperative within you? This "firmness" of your so called moral judgement? This "unconditional" feeling that "here everyone here must judge as I do"?
He goes on:
Rather admire your selfishness at this point. And the blindness, frugality, pettiness of your selfishness.
To which he explains:
For it is selfish to experience ones own judgement as a universal law; and this selfishness is blind, petty and frugal because it betrays that you have not discovered yourself, nor yet created an ideal for yourself, your very own - for that could never be somebody else's; much less that of all, all!
Who is Nietzsche accusing? And why? For I suppose it is historically situated; and why drag physics of all things into it - when it appears to have no connection with the rest of the aphorism.
What, man...is physics then not a gay and joyful science? In a book called the gay science...!?
(for surely it must be to the true physicist caught up in its magic; for physics must surely be a physick to the true physicist - if not to anyone else caught up in some other purposeful magic).
And why call selfishness "blind, frugal, petty"?
When on a simple-minded reading selfishness only enhances power? So it ought not to be "frugal"; and why "blind", when one needs eyes to take advantage? To look around hungrily...
The pettiness seems to be obvious, however.
I don't imagine he's accusing Kant, or is he?
(For did Kant smuggle the categorical imperative into himself or set it free like a dove; and if not as dove then as a hawk? Or both? Into the sky that is both hawk and dove).