Translation of quilate

I grabbed a burger from an American fast food chain and swallowed it immediately, as I had not eaten for a while. I boarded the machine and could feel a slight stomachache but decided to ignore.
In my last email to you i suggested that everyone has a tiny bit of racism in himself, not necessarily much, but definetely a little. Unfortunately, in this case, the information we get is wrong.
In the evening we drove up to the Victoria peak and hiked on the trails around the main view point. The view in the late afternoon was spectacular and after sunset, with all the lights it was breathtaking.