The bitterness of the potion, ...

The bitterness of the potion, and the abhorrence of the patient are necessary circumstances to the operation. It must be something to trouble and disturb the stomach that must purge and cure it.
The bitterness of the potion, and the abhorrence of the patient are necessary circumstances to the operation. It must be something to trouble and disturb the stomach that must purge and cure it.

Quotes from the same author

I care not so much what I am to others as what I am to myself. I will be rich by myself, and not by borrowing.
If there is such a thing as a good marriage, it is because it resembles friendship rather than love.
The most certain sign of wisdom is cheerfulness.
The most unhappy and frail creatures are men and yet they are the proudest.
It is much more easy to accuse the one sex than to excuse the other.