Faith is not passive waiting; it is active imagination and feeling.
如果要从正确和善良中,作出选择,请选择善良.
科学的进步不是通过事实的积累,而是通过发现它们之间的新关系。
In mathematics, persistence is often more important than brilliance.
当一个问题被清晰地陈述时,它就已经解决了一半。
最好的水果来自最好的实践。