The dangerous man is the one who has only one idea, because then he'll fight and die for it.
"Every book should be a conversation between the author and the reader."
恐惧是迷信的根源,也是造成残忍的主要原因之一。 智慧始于征服恐惧。
I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.