I doubt if a single individual could be found from the whole of mankind free from some form of insanity. The only difference is one of degree. A man who sees a gourd and takes it for his wife is called insane because this happens to very few people.
Man is to man either a god or a wolf.
It is wisdom in prosperity, when all is as thou wouldn't have it, to fear and suspect the worst.
He who allows oppression shares the crime.
Prevention is better than cure.
Your library is your paradise.