使我们成为人类的东西也是使我们脆弱的东西。
The things that make us human are the things that make us vulnerable.
Life is too short to be anything but happy.
农业中的每个挑战都是创新和改进的机会。
The text is a tissue of quotations drawn from the innumerable centers of culture.
善于利用时间的人，永远找得到充裕的时间。