Misc: What is the simplest gem in chemical composition?

Questions

"I am free of --------------. I hate everyone equally."- W.C. Fields?

"If I want your -----------, I'll give it to you."- Al Capone?

"I am not bound to ------------ thee with my answer."- William Shakespeare (1564 - 1616)?

"I am not --------- enough to know everything."- Oscar Wilde (1854 - 1900)?

"If I were --------------, would I be wearing this one?"- Abraham Lincoln (1809-1865)?