Ancient poems about family ties

Summarized as follows:

1, I used to, Yangliu is Yiyi; The road is muddy and difficult to walk, and people are thirsty and hungry. -"The Book of Songs Xiaoya and Cai Wei"

2. Candles have a heart to say goodbye and weep for others until dawn. -Du Mu

3. Being a parent is the best in the world; Being a child is the greatest filial piety in the world. -"aphorisms are interlocking"

4. People gradually feel unfamiliar with the local accent, but they hate the warbler sound like Laoshan. -Sikongtu

However, if there is something wrong with the letters in peacetime, what can I expect in wartime? . -Du Fu's Moonlight Remembering My Brother