Mr. Lyell's system of geology is just half the truth, and no more. He affirms a great deal that is true, and he denies a great deal which is equally true; which is the general characteristic of all systems not embracing the whole truth.
I'll bet you anything you like that half an hour after they have met, they will be calling each other sister. Women only do that when they have called each other a lot of other things first.
Compromise used to mean that half a loaf was better than no bread. Among modern statesmen it really seems to mean that half a loaf; is better than a whole loaf.