Who wrote the poem I Can I Must I Will?

I believe the person last name is Conklin. The the poem goes: I can conquer anything I want because I am bright, I am unique. I control my destiny. I must because I own a special place on this universe. I will not allow anyone to define my limits or control my boundaries. I will succeed because I can overcome any obstacles by using my mind, my body, and intellect to crawl under, walk around, to climb over those things which hinders me because I can I must I will be successful for me.