What we need in literature today are vast philosophic horizons; we need the most ultimate, the most fearsome, the most fearless 'Why?' and 'What next?'("Literature, Revolution, and Entropy")
It's just that it's fearsome for a man to have a woman start thinking right in front of him. It always leads to trouble.
(a.) Frightful; causing fear.
(a.) Easily frightened; timid; timorous.