忧虑是一种积极的心理活动，可以开阔人的思路。如果能正确引导这一情绪，你就可以洞察任何形势下的负面风险，并采取行动规避这些风险。
The universe is a vast and mysterious place, and we are only beginning to understand its complexities.
If you want to understand function, study structure.
建筑的创新来自于对显而易见的事物的质疑。