Khaled Hosseini said this quote
“ It would be erroneous to say Sohrab was quiet. Quiet is peace. Tranquility. Quiet is turning down the volume knob on life.Silence is pushing the off button. Shutting it down. All of it. Sohrab's silence wasn't the self imposed silence of those with convictions, of protesters who seek to speak their cause by not speaking at all. It was the silence of one who has taken cover in a dark place, curled up all the edges and tucked them under. ”