The boundary between physics and mathematics is not as clear-cut as we might think.
"Memory is a tricky thing; it can be both a blessing and a curse."
出自《抱朴子·广訾》。病到很急的时候就会觉得良医是重要的了,世道动乱的时候就会觉得忠贞的臣子是重要的了。
Love is the only language everyone understands without translation.