I believe cats to be spirits come to earth.

I have always made a point in my romances of basing my so-called inventions upon a groundwork of actual fact, and of using in their construction methods and materials which are not entirely without the pale of contemporary engineering skill and knowledge.

Everything is possible for an eccentric, especially when he is English.

What you do for money you do badly.

The sole precoccupation of this learned society was the destruction of humanity for philanthropic reasons and the perfection of weapons as instruments of civilization.

Savages!' he echoed, ironically. 'You set foot on one of the shores of this globe, professor, and you’re surprised to find savages? Where aren’t there savages? Besides, are they any worse than others, these whom you call savages?

He must have travelled everywhere, at least in the spirit.