True leadership is about serving others, not commanding them.
The mind once enlightened cannot again become dark.
发现的喜悦无疑是人类心灵所能感受到的最活跃的体验。
数学中发现的快乐是无与伦比的。
每座建筑都是为了特定目的在特定地点为特定社会而建。
材料的物理性就是它的意义。