Every great engineering achievement starts with a clear vision.
When you can't go back, you have to worry only about the best way of moving forward.
The only way to save a rhinoceros is to save the environment in which it lives, because there's a mutual dependency between it and millions of other species of both animals and plants.
"The best way to learn mathematics is to do mathematics."
荒野是一个不确定的地方。要生存,你必须拥抱未知。