It's the admirer and the watcher who provoke us to all the inanities we commit.
— Marcus Annaeus Seneca Seneca The Elder

Opening amenities are often opening inanities.
Winston Churchill inanity quote

But how is one to make a scientist understand that there is something unalterably deranged about differential calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.
— Antonin Artaud

The obstinacy of cleverness and reason is nothing to the obstinacy of folly and inanity.
— Harriet Beecher Stowe

Haven't two hundred years of failed missionary work overseas taught anybody anything? You can't convert people to anything - whether religion, or something as inane as our flicks.
— inanity quotation by Kevin Smith