时间改变一切，绘画也不例外。

The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not. We are ruled by the forces of chance and coincidence.

We may encounter many defeats but we must not be defeated.

自守表示的研究揭示了数域的隐藏对称性。

对正确的需要，是我们庸俗思想的标志。

The challenge in computer science is to bridge the gap between the theoretical models and practical applications.

建筑是一种创造，是对美的创造。