From an Essay by Walter Kaufmann:
Furthermore, Popper has relied largely on Scribner’s Hegel Selections, a little anthology for students that contains not a single complete work. Like Gilson in The Unity of Philosophical Experience (p. 246), Popper takes over such a gross mistranslation as “the State is the march of God through the world,” although the original says merely that it is the way of God with the world that there should be the State, and even this sentence is lacking in the text published by Hegel and comes from one of the editor’s additions to the posthumous edition of The Philosophy of Right — and the editor admitted in his Preface that, though these additions were based on lecture notes, “the choice of words” was sometimes his rather than Hegel’s.
No conception is bandied about more unscrupulously in the history of ideas than “Influence.” Popper’s notion of it is so utterly unscientific that one should never guess that he has done important work on logic and on scientific method. At best, it is reducible to post hoc, ergo propter hoc. Thus he speaks of “the Hegelian Bergson” (p. 256 and n. 66) and assumes, without giving any evidence whatever, that Bergson, Smuts, Alexander, and Whitehead were all interested in Hegel, simply because they were “evolutionists” (p. 225 and n. 6).