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.

The real tragedy of the poor is that they can afford nothing but self-denial.

The only way to grow is to step out of your comfort zone.

你老师教不了书是因为我。

遗传密码的发现为理解遗传和疾病的分子机制提供了基础。

所有人类行为都有以下七个原因中的一个或多个：机会、自然、强迫、习惯、理性、激情和欲望。

Of the people, by the people, for the people.

身份是我们讲给自己听的故事，有时我们必须重写它。