I dare say I am compelled, unconsciously compelled, now to...

I dare say I am compelled, unconsciously compelled, now to write volume after volume, as in past years I was compelled to go to sea, voyage after voyage. Leaves must follow upon each other as leagues used to follow in the days gone by, on and on to the appointed end, which, being truth itself, is one -- one for all men and for all occupations.