学习古人的文章,必须先理解其思想内涵,然后再学习其文辞表达。
People must feel that the natural world is important and valuable and beautiful and wonderful and an amazement and a pleasure.
历史的终结将是一个非常悲伤的时刻。
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.