Philosophy is a high mountain road...an isolated road and becomes even more desolate the higher we ascend. Whoever pursues this pass should know no fear but must leave everything behind and confidently make his own way in the wintry snow...He soon sees the world beneath him; its uneven spot are leveled out, its jarring sounds no longer reach his ear. And its roundness is revealed to him. He himself is always in the pure cool mountain air and beholds the sun when all below is still engulfed in the dead of night.