If you want to make a discovery, look for something that is both obvious and invisible.
如果你想有所发现,去寻找那些既显而易见又不可见的事物。
You have to be willing to fail to succeed.
物资用完了才知道不足,是因为不懂得计量;事情做完了才知道有余,是因为不懂得调节。