You can't judge a book by its cover, but you can by its first chapter.
植物杂交实验需要最仔细的关注和极大的耐心。
I don't sing because I'm happy; I'm happy because I sing.
每一项伟大突破最开始都是可笑的、荒谬的。事实上,如果它一开始不是可笑和荒谬的,就不是突破。