The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.
The knowledge of the past stays with us to spur us on to new achievements.
捕捞的短期收益往往会导致所有相关人员的长期损失。
The great tragedy of life is not that men perish, but that they cease to love.