当下总是不稳定的地方,而过去是我们自以为知道身在何处的地方。
The goal of mathematics is to understand the structures that underlie the phenomena we observe.
"To travel is to discover that everyone is wrong about other countries."
外表不端正,是因为没有培养好德行;内心不精诚,是因为没有修治好心灵;端正外表、修养德性,才能了解万物。
简单性并不先于复杂性,而是随之而来。