The most important skill in mathematics is the ability to ask the right questions.
不过,星星本身是沉默的。你,只有你,了解这些星星与众不同的含义……
The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
知足是天然的财富,奢侈是人为的贫困。