Regardless of what you think of the Tories, the history of the Conservative party is one of robust political thinking, back to Sir Robert Peel, and via Disraeli, Churchill, and even Mrs Thatcher - taking on various theories by philosophers such as Edmund Burke and Friedrich Hayek.
Even modern day Tories such as Hague, Gove and Willetts like to do a bit of writing beyond ghost-written tabloid comment pieces.
