A law of nature， lex naturalis， is a precept or general rule found out by reason， by which a man is forbidden to do that which is destructive of his life or takes away the means of preserving the same.

Commitment to excellence is a journey, not a destination.

我不喜欢被定义。

了解穷人的真实生活是设计有效政策帮助他们第一步。

在心理学领域，正常与异常之间的界限往往是模糊和主观的。

Tradition and innovation must walk hand in hand for agriculture to thrive.

写作是一种抵抗遗忘的方式。