1. It is important to meditate on the meaning of life.
    思考人生的意义很重要。

2. I can´t go into all the niceties of meaning.
    我无法详述意义上的细微区别.

3. If it is a fact that the meaning of life does not dawn until middle age,
    如果人们步入中年时才对人生的含义有所领悟的话，