1) pessimism and optimism
忧乐观
1.
On works pessimism and optimism of Liu-Zongyuan;
柳宗元忧乐观的文本解读
2) suffering and cheerfulness
忧乐
3) enjoying heaven and worrying the human world
乐天忧世
4) being concerned about his country and his people ahead of enjoyment
先忧后乐
补充资料：长乐观
1.即长乐宫。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条