永远不要停止学习，因为世界永远不会停止变化。
Never stop learning because the world never stops changing.
The world is full of poetry. The air is living with its spirit; and the waves dance to the music of its melodies, and sparkle in its brightness.
Don’t be the smartest person in the room. Hangout with， and learn from， people smarter than yourself. Even better， find smart people who will disagree with you.
我们都害怕——为我们的信心，为未来，为这个世界。
Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.