He tried, but sometimes he just didn't have the energy to make the effort. Sometimes, he let himself be dragged back down by the grief, and blamed himself for Isaac's death. He wasn't responsible, and he knew that intellectually, but he couldn't escape the self-doubt sometimes.

"Each day is a new beginning. The pains of the previous day ease so that the new day's can come and be dealt with.Pain lets us know that we're still alive, hmm?" Or something like that.