I intend to put up with nothing that I can put down.

The line is a compact epigram built on a pun: “put up with” (tolerate) versus “put down” (set down, dismiss, or even insult). Its force is a declaration of intolerance for burdens one has the power to remove—an assertion of agency and refusal to accommodate what is unnecessary or demeaning. Read more broadly, it can be taken as a credo of self-respect: if a situation, demand, or person can be “put down” (rejected, corrected, or ended), then enduring it is a choice rather than a necessity. The wit lies in turning a common idiom into a maxim about boundaries and control.