Who said "We must be willing to question our assumptions."?

This quote is attributed to Molly Brown.

We must be willing to question our assumptions. - Molly Brown

"We must be willing to question our assumptions."

Molly Brown

"I ain't no shrimpy little Countess - I'm the Unsinkable Molly Brown!"

"Life is too short to worry about what other people think of you."

"A woman's worth isn't determined by her bank account or her lineage."

"Never let anyone tell you that you're not good enough."