[On Katharine Hepburn's stage performance:] She ran the whole gamut of emotions, from A to B.

[On Dashiell Hammett:] ... he is so hard-boiled you could roll him on the White House lawn.

Upton Sinclair is his own King Charles' head. He cannot keep himself out of his writings, try though he may; or, by this time, try though he doesn't.

It costs me never a stab nor squirm / To tread by chance upon a worm. / Aha, my little dear, / I say, Your clan will pay me back one day.

At birth the Devil touched my tongue.

The only “ism” Hollywood believes in is plagiarism.

Be you wise and never sad, You will get your lovely lad. Never serious be, nor true, And your wish will come to you-- And if that makes you happy, kid, You'll be the first it ever did.