Global challenges require global thinking and local action.
全球性挑战需要全球性思维和本地化行动。
数学之美不在于其复杂性,而在于其简洁性以及它揭示隐藏真理的方式。
Be prepared: When you are 90% done any large project (a house, a film, an event, an app) the rest of the myriad details will take a second 90% to complete.