Marry your son when you will, your daughter when you .
给儿子娶亲,想在什么时候皆可;把女儿嫁人要在有力量时才行。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件,而即使在这里,植物和动物的进化也用了40亿年的时间。