The beauty of biology lies in its ability to explain the diversity of life through simple principles.

资本资产定价模型并非旨在成为资本市场的实证均衡理论，而是一种规范性理论，描述如果投资者以某种方式行事，价格应如何表现。

When given the choice between being right or being kind, choose kind.Mr Browns September Precet.

唯一的出路就是穿过。

When you arrive at your room in a hotel， locate the emergency exits. It only takes a minute.

Program testing can be used to show the presence of bugs, but never to show their absence!

不断追求智慧，是人生的最高目标。