All of these would lie absolutely neglected if their properties had originally gone no further than the taste; but all these, together with tea and coffee, and some other things, have passed from the apothecary's shop to our tables, and were taken for health long before they were thought of for pleasure.

The effect of the drug has made us use it frequently; and frequent use, combined with the agreeable effect, has made the taste itself at last agreeable.

But this does not in the least perplex our reasoning; because we distinguish to the last the acquired from the natural relish.
In describing the taste of an unknown fruit, you would scarcely say that it had a sweet and pleasant flavor like tobacco, opium, or garlic, although you spoke to those who were in the constant use of those drugs, and had great pleasure in them.

There is in all men a sufficient remembrance of the original natural causes of pleasure, to enable them to bring all things offered to their senses to that standard, and to regulate their feelings and opinions by it.

Suppose one who had so vitiated his palate as to take more pleasure in the taste of opium than in that of butter or honey, to be presented with a bolus of squills; there is hardly any doubt but that he would prefer the butter or honey to this nauseous morsel, or to any other bitter drug to which he had not been accustomed; which proves that his palate was naturally like that of other men in all things, that it is still like the palate of other men in many things, and only vitiated in some particular points.