Parents build or erode their child's inner architecture with every sentence. Comments that focus on what the child can become—'You're getting stronger at this,' 'I noticed how patiently you waited'—build up. Comments that fix on failure—'Why can't you ever...,' 'You always...'—tear down. Confucius adds another nuance: even constructive words must be offered at the right time and in the right measure. When a child is overwhelmed, the kindest speech might be silence. When they are receptive, a single sentence of genuine encouragement can change their trajectory for weeks.