People criticized economics and said “well, there’s something wrong with Austrian economics because it doesn’t depend on verifying things empirically,” Mises wanted to come up with a reply to that, so that was what really got him into philosophy.
In a free society there is no other means to avoid the evils resulting from one's fellows' bad judgment than to induce them to alter their ways of life voluntarily. Where there is freedom, this is the task incumbent upon the elite.
What are the different concepts of financial risk? How do Austrian economists conceive of risk, uncertainty, and probability? Christian Hoffmann, parting ways with Mises, provides a taxonomy and cautions about the predominance of probability statistics in the realm of economics and finance.