However, a cautious reasoner will probably rather explain such cases deductively from the doctrine of evolution than endeavour to support the doctrine of evolution by them.
On the other hand, they are constantly impressed by his power of reasoning both deductively and inductively, by the subtlety and fertility of invention with which he applies analogies, by the clearness and keenness of his observation, by the fulness of matter with which his mind is stored, and by the consecutive force, the precision and distinctness of his style, when employed in the processes of scientific exposition.
Hamilton always seems to be reasoning deductively from such principles.
The modern lunar theory began with Newton, and consists in determining the motion of the moon deductively from the theory of gravitation.
More generally, philosophic rationalism is opposed to empirical theories of knowledge, inasmuch as it regards all true knowledge as deriving deductively from fundamental elementary concepts.
So far as it is inductively true that all border-war is evil, it is deductively true that a given border-war is therefore evil.