I need two quotes from "A Christmas Carol"

"If they had rather die then they had best do it and decrease the surplus population"

"As solitary as an oyster"

"I wear the chain I forged in life ... I made it link by link, and yard by yard; I girded it on of my own free will, and of my own free will I wore it."

"Mankind was my business. the common welfare was my business; charity, mercy, forbearance, and benevolence, were all my business. the dealings of my trade were but a drop of water in the comprehensive ocean of my business."