Não sou nada.
Nunca serei nada.
Não posso querer ser nada.
À parte isso, tenho em mim todos os sonhos do mundo.

Álvaro de Campos, one of the heteronyms of the great Portuguese poet Fernando Pessoa (I just love his work)

Free translation by me:
I am nothing
I will never be anything but nothing
I should never dare to be anything but nothing
Apart from that, I have within myself all the dreams of the world.

(not that my English is perfect, far from being perfect. But I hope you get the meaning of it)
Thanks!