数学家是将咖啡转化为定理的装置。
"A mathematician is a device for turning coffee into theorems."
幸福的秘密不在于追求更多,而在于培养享受更少的能力。
If you lose or forget to bring a cable,adapter or charger,check with your hotel. Most hotels now have a drawer full of cables,adapters and chargers others have left behind,and probably have the one you are missing. You can often claim it after borrowing it.