The mating game

I am going through this book now; "The mating game" by John Gribbin and Jeremy Cherfas. Author explains that why humans have two sexes and why sexual reproduction is advantageous to asexual reproduction. Nature has given us large brains and shared its own power of selection with us. Darwin suggested a theory of sexual selection after his all famous theory of natural selection. Sexual selection theory, appears to be a subset of the grand natural selection process. Sexual selection just give humans little bit more control over their biological destiny. Survivors will be the ones whom people love. I, initially put this last sentance as "survivors will be the ones whom girls love" but then realised that whats true for boys selection its the boys for selecting girls. So, both sexes choose better attributes in opposite sexes and mate to produce offsprings which have desired characterstics. If it has been just one sex, nature would have been only criteria to discard disadvantageous features. Nature built its toys such that these toys filter out any disadvantageous features in themselves and keep on surviving.
Here, this system also have some deficiencies, human mind doesn't always think rationally and true to our ignorance we have hard time in differentiating our natural instincts and fantasies. Giving in to your instincts is submitting to nature but humans are built in such to tough competitor. First time, I think we share the "Nature's Grandeur", if only if..!!!