Predispositions

This passage reminded me of James Hillman's The Soul's Code.  Even Hillman admitted he was using extreme cases to indicate the reality of far more common (and subtle) patterns.  Johnson's doubt lines up with Hillman's recognition of a spectrum.

"Some that imagine themselves to have looked with more than common penetration into human nature, have endeavoured to persuade us that each man is born with a mind formed peculiarly for certain purposes, and with desires unalterably determined to particular objects, from which the attention cannot be long diverted, and which alone, as they are well or ill pursued, must produce the praise or blame, the happiness or misery of his future life.

This position has not, indeed, been hitherto proved with strength proportionate to the assurance with which it has been advanced, and perhaps will never gain much prevalence by a close examination.
If the doctrine of innate ideas be itself disputable, there seems to be little hope of establishing an opinion, which supposes that even complications of ideas have been given us at our birth, and that we are made by nature ambitious, or covetous, before we know the meaning of either power or money."

Samuel Johnson
The Rambler, 43