How do you pronounce Temet Nosce?

The classical Latin pronunciation would be something like teh met nos kay (long a as in day, and all classic Latin Cs were pronounced hard like K), but most people will use the late Latin/Italian version of teh met nos chay. Actually, the way most pre-Christian Latins would usually say Know Thyself is nosce te ipsum, pronounced either nos kay teh ip soom (a long u sound as in doom), or less correctly nos chay teh ip soom. Both temet nosce and nosce te ipsum are correct Latin, but nosce te ipsum would have been more common.