Nelson's action in Lady Hamilton's case was largely due to the influence of environment. To hesitate in war was universally regarded as shameful. But, in Nelson's environment, a love intrigue was condoned as an amiable human weakness. Hence the failure of Nelson's will and conscience to resist the blandishments of the handsome Emma.
We may say that Jack Sheppard and Cardinal Manning were free to steal, or to refrain from stealing. But we know that the heredity and environment of the thief had made robbery, for him, a proof of prowess, and a question of the value of the spoil; and we know that the Cardinal would not have stolen the Crown jewels if he could; that he did not want them, and would not have taken them if he had wanted them.
We say that a drunkard and a lifelong abstainer are free to drink or to refuse a glass of whisky. But we know that in both cases the action of the free will is a foregone conclusion.
In all cases the action of the will depends upon the relative strength of two or more motives. The stronger motive decides the will; just as the heavier weight decides the balance of a pair of scales.
In Macbeth's case the balance seemed almost even: Lady Macbeth's persuasion brought down the scale on the wrong side.
If the will were free, it would be independent of the temperament and training, and so would act as freely in one case as in another. So that it would be as easy for the drunkard as for the lifelong abstainer to refuse to drink; as easy for the thief as for the Cardinal to be honest; as easy for Macbeth as for Lady Macbeth to seal the fate of Duncan.
But we all know that it is harder for one man than for another to be sober, or honest, or virtuous; and we all know that the sobriety, or honesty, or virtue of any man depends upon his temperament and training; that is to say, upon his heredity and his environment.
How, then, can we believe that free will is outside and superior to heredity and environment?
In the case of the slum children rescued by Dr. Baraado and others we know that had they been left in the slums their wills would have willed evil, and we know that when taken out of the slums their wills willed good.
There was no change in the freedom of the will; the will that is free in Whitechapel is free in Manitoba. The difference was the environment. In Canada as in London the environment controlled the will.