After claiming he could give a speech on any subject at a moment's notice, and being challenged by Lord Ribblesdale to talk about the Queen.
Quoted in The Reminiscences of Lady Randolph Churchill (1908)

“Divorces are made in Heaven.”

Oscar Wilde The Importance of Being Earnest

Algernon, Act I
The Importance of Being Earnest (1895)

“Misery and poverty are so absolutely degrading, and exercise such a paralysing effect over the nature of men, that no class is ever really conscious of its own suffering. They have to be told of it by other people, and they often entirely disbelieve them.”

Oscar Wilde book The Soul of Man under Socialism

The Soul of Man Under Socialism (1891)

“The growing influence of women is the one reassuring thing in our political life.”

Oscar Wilde A Woman of No Importance

Kelvil, Act I
A Woman of No Importance (1893)

“She said that she would dance with me if I brought her red roses," cried the young Student; "but in all my garden there is no red rose.”

Oscar Wilde book The Happy Prince and Other Tales

"The Nightingale and the Rose"
The Happy Prince and Other Tales (1888)

“Lord Goring: Now I'm gonna give you some good advice.
Mrs. Cheveley: Pray don't. You should never give a woman something she can't wear in the evening”

Oscar Wilde An Ideal Husband

Act III
An Ideal Husband (1895)

“Charity creates a multitude of sins.”

Oscar Wilde book The Soul of Man under Socialism

The Soul of Man Under Socialism (1891)

“The English are always degrading truths into facts. When a truth becomes a fact it loses all its intellectual value.”

Oscar Wilde

A Few Maxims for the Instruction of the Over-Educated (1894)

“Prayer must never be answered: if it is, it ceases to be prayer and becomes correspondence.”

Oscar Wilde

Quoted by Alvin Redman in The Epigrams of Oscar Wilde http://books.google.com/books?id=qUjQAAAAMAAJ&q=%22Prayer+must+never+be+answered+if+it+is+it+ceases+to+be+prayer+and+becomes+correspondence%22&pg=PA106#v=onepage (1952)

“Starvation, and not sin, is the parent of modern crime.”

Oscar Wilde

The Epigrams of Oscar Wilde, edited by Alvin Redman (1954)

“The home seems to me to be the proper sphere for the man. And certainly once a man begins to neglect his domestic duties he becomes painfully effeminate, does he not?”

Oscar Wilde The Importance of Being Earnest

Gwendolen, Act II
The Importance of Being Earnest (1895)

“To be good, according to the vulgar standard of goodness, is obviously quite easy. It merely requires a certain amount of sordid terror, a certain lack of imaginative thought, and a certain low passion for middle-class respectability.”

Oscar Wilde

The Critic as Artist (1891), Part II

“When a man has no enemy left there must be something mean about him.”

Oscar Wilde Vera; or, The Nihilists

Vera; or, The Nihilists (1880)

“God knows; I won't be an Oxford don anyhow. I'll be a poet, a writer, a dramatist. Somehow or other I'll be famous, and if not famous, I'll be notorious. Or perhaps I'll lead the life of pleasure for a time and then—who knows?—rest and do nothing. What does Plato say is the highest end that man can attain here below? To sit down and contemplate the good. Perhaps that will be the end of me too.”

Oscar Wilde

As quoted in In Victorian Days and Other Papers (1939) http://books.google.com/books?id=LfIjfuQGwOIC&printsec=frontcover&dq=In+Victorian+days&as_brr=0&cd=1#v=onepage&q=notorious&f=false by Sir David Oswald Hunter-Blair, p. 122