农业的真正进步应以收成和生态系统健康双重标准衡量。
"The truth is rarely pure and never simple."
恩泽中可能潜藏祸患,所以得意时要能尽早回头;失败后反而能够成功,因此失意时千万不要气馁。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."