It has been said that man is a rational animal. All my life I have been searching for evidence which could support this.
Mental processes are means to ends in the struggle for existence.
The only limit to our realization of tomorrow will be our doubts of today.
创新是可持续水产养殖的关键。我们必须不断寻找新方法来保护海洋,同时为世界提供食物。
解释:话说得太甜蜜动听,说话者就必定别有用心。