Quoted By:
>3 lenses for the rest of your life
Helios 44M-2 58mm f/2. Very nice lens from good old russia (after they stole the plans from the Germans after WW2) for portraits and for objects (as the central element of the picture). Can be used with some extension tubes making a very cool macro lens for outdoor usage. Effectively 83mm due to crop on APS-C, but the lens can be used on full frame too. The lenses are made just of metal and glass, they are rock stable, you may be able to beat a muslim to death with it, maybe two of them. They can be even opened for cleaning and re-greasing relatively easily. The bokeh and the nice lens flares you can get with this lens are just pure gold.
Fuji 23mm f/2 WR. That would be my always on lens. Compact, robust, feels good. According to the crop factor of 1.5 on APS-C the classic journalists focal length of about 35mm. I prefer this over the often propagated 50mm for a standard lens.
Samyang 12mm f/2. Sharp as fuck and even cheaper. Manual wide angle at 18mm (APS-C crop), no significant distortions, no significant shading in the corners. The lens can focus at close distances, making it usable for macro too. And i even like the bokeh when stopped down.
That would be my choices. And i would prefer to put them on a camera made by Fuji.