This may be true to some extent, but I believe that a more accurate statement is: You Are What You Think.
As a pastor I have noticed that there are many kind-hearted and encouraging people that love to build other people up. I can think of a few specific people that I love being around because they always make me feel like a better person than I really am. However, I have also noticed that there are some people that feel like their gift in life is criticism. I would be lying if I said that criticism doesn’t hurt, proving that this old poem is wrong…at least in my case.