Who says the following and why?

I ask you, what am I? I'm one of the undeserving poor: that's what I am. ... But my needs is as great as the most deserving widow's that ever got money out of six different charities in one week for the death of the same husband. I don't need less than a deserving man: I need more. I don't eat less hearty than him; and I drink a lot more. I want a bit of amusement, cause I'm a thinking man... I ain't pretending to be deserving. I'm undeserving; and I mean to go on being undeserving.

Question

Who says the following and why?

I ask you, what am I? I'm one of the undeserving poor: that's what I am. ... But my needs is as great as the most deserving widow's that ever got money out of six different charities in one week for the death of the same husband. I don't need less than a deserving man: I need more. I don't eat less hearty than him; and I drink a lot more. I want a bit of amusement, cause I'm a thinking man... I ain't pretending to be deserving. I'm undeserving; and I mean to go on being undeserving.

anonymous · Answer

Liza is trying to convince Pickering to buy some flowers.

Doolittle is trying to get five pounds out of Higgins.

Higgins is relating Doolittle's philosophy to Pickering.

Doolittle is trying to get rid of his new riches.

studystagram · Answer

Doolittle says the above lines. 
Doolittle is trying to get five pounds out of Higgins.