> Mises in Human Action (p. 19) writes "Human action is necessarily always rational. The term 'rational action' is therefore pleonastic and must be rejected as such. When applied to the ultimate ends of action, the terms rational and irrational are inappropriate and meaningless. The ultimate end of action is always the satisfaction of some desires of the acting man."

https://mises.org/library/what-do-austrians-mean-rational

> The rational being practicing rational-expectations theory only makes behavioral economists laugh. And the neoclassical construct of equilibrium prices requires assumptions that only tenured professors who don't get out much could believe, like perfect competition, perfect information, and perfect rationality.

https://mises.org/library/rationality-and-market-economy