" Gamache watched the old poet. He knew what was looming behind the Mountain. What crushed all before it. The thing the Hermit most feared. The Mountain most feared.

Conscience.

...

Which is why, Gamache knew, it was vital to be aware of actions in the present. Because the present became the past, and the past grew. And got up, and followed you.

And found you ...

Who wouldn't be afraid of this? "

― Louise Penny , The Brutal Telling (Chief Inspector Armand Gamache, #5)