3.
Never underestimate the predictability of stupidity.
Vinnie Jones
4.
Never underestimate the power of compassionately recognizing what's going on.
Pema Chodron
5.
Never underestimate the power of a city to regenerate.
Jane Jacobs
9.
Never underestimate the narcissism of a writer.
Elia Kazan
10.
Never underestimate the booberie of the booboisie.
H. L. Mencken
12.
Never underestimate those who you scar.
Lauryn Hill
14.
Never underestimate the power of a well-placed apostrophe.
Holly Smale
16.
never underestimate your dumbness!!
Jim Benton
17.
Never underestimate the bad taste of the American public
H. L. Mencken
18.
Never underestimate their intelligence, always underestimate their knowledge.
Frank Delaney
20.
Never underestimate the power of a bossy woman.
Karen Hawkins
21.
Never underestimate the power of Abby Joseph Cohen.
Alex Berenson
22.
Never underestimate your fans; they'll tell you exactly what they like.
Aaron Tippin