——《在东京中国留学生欢迎大会的演说》(1905年8月13日)
Forests are the lungs of our planet; we must treat them with the care they deserve.
发现的兴奋永远不会消退。
生活是一场所有人都要参与的闹剧。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
We must be free not because we claim freedom, but because we practice it.
归纳行为是一种行为模式,而不是推理模式。
我们必须倾听场地;它会告诉我们该做什么。