We can ignore here the metaphysical question of freewill and determinism.
The problem which was the cause of the difference was that of free will and determinism.
As for the latter, we should not exaggerate its determinism.
I have discussed this question at length in my "Determinism or Free Will."
Determinism does not imply that actions are necessary in this sense.
Free-will and determinism—what are these but the very breath of classic tragedy!
This is the theory of Determinism, and I will now explain it.
Socialism, Determinism, and Rationalism are factors in the sum; and the sum is Humanism.
The Determinism they attack is not the Determinism that is either professed or defended.
This, he says, is the real dilemma, and Determinism has never answered it.