- On Fichte: "Fichte's philosophy rests not so much in argument as in impetuous explosions of jargon, in which that fabricated verb "to posit" (setzen) kaleidoscopes into a thousand self-reflecting images."
- On Schopenhauer: "Schopenhauer enjoyed his pessimistic conclusions too much to convince the reader that he really believed in them; and his sardonic assaults on popular prejudice reveal a far greater attachment to life than to the renunciation he officially favored."
- On Heidegger: "[T]he reader has the impression that never before have so many words been invented and tormented in the attempt to express the inexpressible."
[Hat tip to C.B.]