Former US first lady Michelle Obama expressed confidence on Monday that the social progress made by having the first black couple in the White House could not be overturned. Mrs Obama, 54, also spoke of the protocols she breached when she touched the Queen. "And it's not always enough to lean in, because that sh*t doesn't work all the time".
While Obama's accidental use of an expletive swiftly became all anyone could talk about, several people pointed out that her candid criticism of "leaning in" had much greater significance.
On the importance of education, she added: "Someone can't analyse what Brexit means if they can't think critically about the issues".
Then, in what may be an unprecedented slip-up, Obama said the line that threw the audience and internet into a frenzy.
One group of women read excerpts from "Lean In" and listened to portions of Sandberg's TED talks that focused on how women should be more confident in the office.
Former MSNBC host Toure, who was at the speech, called it a "cute moment" and mocked those who criticized the first lady over it.
In fifteen words, Michelle Obama responded, definitively: "It's not always enough to lean in, because that s**t doesn't work all the time".
Michelle Obama tells London school she still has imposter syndrome
When the crowd went wild after Obama uttered the word "s-", she quickly apologized.
"A marriage is hard work, and I share that because, I see too many young people who frivolously enter into marriage. they think the love and the courtship part has something to do with what marriage is, and it doesn't - it's a little bitty part of it", Obama continued.
As for her time in the White House, she said it is "impossible to single out one day" as the most fun or memorable, but she noted that interacting with children and young people always made her 'feel good'. "We mistakenly thought that Barack Obama was going to erase hundreds of years of history in eight years".
The pair also discussed the current political situation in the United States and the idea of progress in civil rights. "And to walk away from that and to look my parents in the eye and say "I'm not feeling this", she laughed, trailing off at the memory. These days, I'm more in control of my time'.
While Obama has not criticised Trump directly at events to promote her memoir, she does criticise him in the book.
Michelle Obama has however cancelled book tour stops in Paris and Berlin to attend the funeral of former U.S. president George HW Bush, who died Friday aged 94.
China Made More Than $1.2 Trillion Trade Commitments: Mnuchin
Despite the questions, US President Donald Trump was in an ebullient mood, promising benefits to US farmers and vehicle companies. Tariffs remain in place, but the tit-for-tat will pause to see if there is any genuine room for compromise.