Happiness lies not in what we have, but in what we enjoy.
幸福不在于拥有什么,而在于享受什么。
最优雅的证明是那些清晰地揭示问题本质的证明。
In manufacturing, efficiency and environmental responsibility must go hand in hand.
The best research often comes from unexpected observations.
〈与日人某君的谈话〉,1924年2月