regarding absolutely crucial issue at the of the problem we must that we not everything there are gaps in our knowledge and in fact that we sometimes in the dark
Thirdly, regarding the absolutely crucial issue at the heart of the problem, we must admit that we do not know everything, that there are gaps in our scientific knowledge and, in fact, that we are sometimes completely in the dark.
regarding absolutely crucial issue at the of the problem, we must that we not everything, there are gaps in our knowledge and, in fact, that we sometimes in the dark.