There are problems to whose solution I would attach an infinitely greater importance than to those of mathematics, for example touching ethics, or ou… - Carl Friedrich Gauss

Dark are the paths which a higher hand allows us to traverse here... let us hold fast to the faith that a finer, more sublime solution of the enigmas of earthly life will be present, will become part of us.

One cannot reduce to concepts the distinction between two systems of three straight lines each (directed lines, of which the one system points forward, upward to the right, the other forward, upward to the left) but one can only demonstrate by holding to actually present spatial things. Two minds cannot reach agreement about it unless their views connect up with one and the same system present in the real world

Pauca sed matura. (Few, but ripe.)