A:虎父无犬子
B:一母生九子,连母十个样
C:龙生龙,凤生凤,老鼠生来会打洞
D:一树之果有苦有甜
请你完成有关计算(结果保留一位小数):
It is ____(belief) that the place will become a paradise if people live in peace.