Now, when I left home I promised my father not to waste my time.

My father had been very good to me; why, then, should I do that which I had promised him not to do?
Then, again, there were the theatres.

During the past six months I had spent several pounds on theatres.

Was this right?
My mother, who has never, I think, been in a theatre, strongly advised me against frequenting such places.

I did not take this much to heart at the time.
Theatres did not seem to me to be immoral.