You merely have to write!

I met, not long ago, a young man
who aspired to become a novelist.

Knowing that I was in the profession,
he asked me to tell him how he should set to work to realize his ambition.

I did my best to explain.

'The first thing,'I said,
'is to buy quite a lot of paper, a bottle of ink, and a pen.

After that you merely have to write.'

-Aldous Huxley, novelist (1894-1963)