'Kim Kardashian and her sisters have thick skin and they're very smart girls' - Kris Jenner says

Kris Jenner is proud of her daughters and has spoken highly of them by saying they have thick skin and are also very smart and intelligent girls. In a new interview with People, the 62-year-old momager who has daughters Kourtney, Khloe and Kim Kardashian, and son Rob Kardashian with late ex-husband Robert Kardashian, and Kendall and Kylie Jenner with former spouse Caitlyn Jenner, says her girls possess certain inner strength and are very smart, intelligent and creative. She told People magazine: 'There's a certain inner strength that the girls possess. 'It's very important to have their level of thick skin. They're very smart girls, they're very intelligent and they're very creative. 'And they love getting up every day and working. One day it's the Met Ball, one day it's shooting the cover of Vogue or a campaign.'There are so many things the girls have accomplished and it takes a lot of hard work and the best kind of work ethic around.' The 'Keeping Up With the Kardashians' star who is now a grandmother of nine say she gives thanks to God everyday for her large family She said: 'I think God every day for the blessings. Just to be around watching my babies have babies, it doesn't get any better than this.'