can we define originality?

 i am myself, 

yet my ideas and thoughts are ultimately influenced by others.

 can i claim anything as my own?

 perhaps a citation is necessary in my grocery list and thank you letters;

 a works cited page that could wrap around the equator thrice

 and still have room before bedtime.

 now is the ultimate quest to find the origin:

 the big bang of thought,

 of existence.