地理学是研究地球作为人类家园的科学。
Success is not final, failure is not fatal: it is the courage to continue that counts.
"In the middle of difficulty lies opportunity."
The limits of my language mean the limits of my world.
科学无国界，因为知识属于人类，是照亮世界的火炬。
A writer is someone who spends years patiently trying to discover the second being inside him, and the world that makes him who he is.
Innovation is not just about technology; it's about changing the way we think and operate.