Did Boris really say these things?

If these quoted are genuine he is more of a fool than he appears and should not hold any office.

"Chinese cultural influence is virtually nil, and unlikely to increase… Indeed, high Chinese culture and art are almost all imitative of western forms: Chinese concert pianists are technically brilliant, but brilliant at Schubert and Rachmaninov. Chinese ballerinas dance to the scores of Diaghilev. The number of Chinese Nobel prizes won on home turf is zero, although there are of course legions of bright Chinese trying to escape to Stanford and Caltech… It is hard to think of a single Chinese sport at the Olympics, compared with umpteen invented by Britain, including ping-pong, I’ll have you know, which originated at upper-class dinner tables and was first called whiff-whaff. The Chinese have a script so fiendishly complicated that they cannot produce a proper keyboard for it."
Have I Got Views for You p277

"The problem is not that we were once in charge, but that we are not in charge any more... Consider Uganda, pearl of Africa, as an example of the British record. ... the British planted coffee and cotton and tobacco, and they were broadly right... If left to their own devices, the natives would rely on nothing but the instant carbohydrate gratification of the plantain. You never saw a place so abounding in bananas: great green barrel-sized bunches, off to be turned into matooke. Though this dish (basically fried banana) was greatly relished by Idi Amin, the colonists correctly saw that the export market was limited... The best fate for Africa would be if the old colonial powers, or their citizens, scrambled once again in her direction; on the understanding that this time they will not be asked to feel guilty."

Discussing his views on Africans and Instant Carbohydrate Gratification" The Spectator 2 February 2002

"It is said that the Queen has come to love the Commonwealth, partly because it supplies her with regular cheering crowds of flag-waving picaninnies; and one can imagine that Blair, twice victor abroad but enmired at home, is similarly seduced by foreign politeness. They say he is shortly off to the Congo. No doubt the AK47s will fall silent, and the pangas will stop their hacking of human flesh, and the tribal warriors will all break out in Watermelon smiles to see the big white chief touch down in his big white British taxpayer-funded bird."
Daily Telegraph 10 January 2002

http://en.m.wikiquote.org/wiki/Boris_Johnson#section_1

I only looked them up as Benjamin Zephaniah mentioned it on bbcqt