The true sign of intelligence is not knowledge but imagination.
智慧的真正标志不是知识，而是想象力。
The only constant is change, continuing change, inevitable change, that is the dominant factor in society today.
The essence of entrepreneurship is innovation, and the essence of innovation is risk-taking.
采矿技术的创新不是为了取代人，而是为了让他们能够更好、更安全地完成工作。