There is some truth in that; but are there not here again lines of investigation which the physician might well study?
For instance, the power of thought over the human body, all that mass of facts on which partly is built up such a science as Mental Healing, or what is called Faith Cure, and so on.

Do you think that these things have been going on for hundreds of years, and that there is no truth lying behind them?
"The effects of imagination," you say.

But what is imagination?
It does not matter of what it is the effect, if it brings cure where before there was disease.

If you put into a man's body a drug that you do not understand, and find that it cures a disease and relieves a pain, will you throw the drug aside because you do not understand it?
And why do you throw the power of imagination aside because you cannot weigh it in your balance, nor find that it depresses one scale more than the other?
Imagination is one of the subtlest powers of thought: imagination is one of the strongest powers that the doctor might utilise when his drugs fail him and his old methods no longer serve his purpose.

Suggestion, the power of thought.
Why, there are records of cases where suggestion has killed! That which has killed can also cure, and man's body being only a product of thought, built up through the ages, answers more rapidly to its creator than it does to clumsier products from the mineral and vegetable kingdoms.