He hemmed and hawed a good deal.
Seldom did he hesitate in this fashion.

As a rule, he was quick to decide and quicker to act.
"I might entertain your scheme if I were told more about it," he said dubiously, gazing with troubled eyes at the Chinaman's blandly inscrutable face.

"Please believe me when I say that I trust your good faith, but I am not sure that even you understand fully the nature of the adventure you have in mind.

Wong Li Fu has already committed one murder in London.

He has attempted others, and is absolutely careless of consequences.