The Man Who was Thursday by G K Chesterton

Opening line:

The suburb of Saffron Park lay on the sunset side of London, as red and ragged as a cloud of sunset.

The Napoleon of Notting Hill by G K Chesterton

Opening line:

The human race, to which so many of my readers belong, has been playing at children’s games from the beginning, and will probably do it till the end, which is a nuisance for the few people who grow up.