I want to be brave in such a way that I can protect my sister, 6 months back my sister was abuse by cobbler and she told me about it but I could do nothing So how can I protect my sister, my friends if they are in danger or someone troubles them I am very coward but I don't know why I am so coward, At least I should be brave to defend myself my family or at least myself Why I am born weak and coward, I blame my genes for that because younger children shows great courage but courage does not comes from within me. I get scared even when drunk man stands near me in bus, forget of defending I start shaking and this is most serious problem of mine What's my problem and this is also my sisters problem We can't scold or shout anyone People take advantage of us, they bully us, abuse us and we don't fight back, we don't find that inner strength. I want to know why the hell we are born like this and how can we improve People do call us dumb. Is this nature or nurture This question is very important for me as today's world is tit for tats world and survival of the fittest, so please do reply because knowing the problem means half solution.