False happiness renders men stern and proud， and that happiness is never communicated. True happiness renders them kind and sensible， and that happiness is always shared.

The most important thing in computer graphics is to understand light and how it interacts with surfaces.

The world is a book, and those who do not travel read only one page.

The ultimate goal of machine learning is to make computers learn from experience and improve their performance on tasks over time.

The best way to predict the future is to invent it.