...of thought

For a long time we walked on very quickly and in silence. Everything I might have said was checked beforehand by what I felt she was thinking; I dreaded to provoke some sentence which might set both our fates trembling in the balance. And as I thought of what Martins had said as to the possibility of her regaining her sight, a dreadful anxiety gripped me.

[La Symphonie Pastorale, Gide, A.]