You are never too old to set another goal or to dream a new dream.

And no grown-ups will ever understand that this is a matter of so much importance!

The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

我想这就是爱人的一部分：你必须放弃一些东西。有时你甚至不得不放弃他们。

科学的发展离不开社会的进步。