I enjoyed Old Man's War immensely. A space war story with fast action, vivid characters, moral complexity and cool speculative physics, set in a future you almost want to live into, and a universe you sincerely hope you don't live in already.

Falling in love indicated that your genes were complementary to those of the loved one. It told you nothing about when your personalities and sexualities were compatible.

Change the problem by changing your mind.

I don't really believe in the Devil, but if the Devil is the Father of Lies, then he certainly invented the Internet.

Of all the sciences, astronomy was the one the superstitious liked least.

It had long been established in the Civil Worlds that public business was to be transparent, and personal business opaque; but it was as well recognised that the two would always have a turbulent interface, and that the clique, the caucus, and the conspiracy were as ineradicable features of civility as the council or the committee.

The world has become one big grassy knoll, crawling with lone gunmen who think they're the Warren Commission.