you really should stop passing off some of these quotes as your own. paraphrasing the same concept is plagiarism.
'A tiger doesn't lose sleep over the opinion of sheep.' - Me, 2012.
'A lion doesn't concern himself with the opinions of the sheep.' - If George R. R. Martin, 1996 or later. If from TV show, David Benioff & D. B. Weiss, 2011.
'A truly strong person does not need the approval of others any more than a lion needs the approval of sheep.' - Vernon Howard, died 1992.
And my favorite:
'It is not part of a true culture to tame tigers, any more than it is to make sheep ferocious.' - Henry David Thoreau, died 1860s.
Lion and lamb/wolf and sheep analogies date back to antiquity. From the Bible to Babylonian writings. There is nothing new here. No one is claiming there is. Thank you for your comment. I’m going to take a nap now.