Open your eyes and see what you can with them before they close forever.
数学的美只向更有耐心的追随者展示。
The human mind is a complex system, and understanding it requires a multidisciplinary approach.
The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome of the process of modernization.
To find out what one is fitted to do, and to secure an opportunity to do it, is the key to happiness.