孔子说：“有益的爱好有三种，有害的爱好有三种。爱好礼乐、爱好称赞别人的优点，爱好广结善友，有益处；爱好放荡、爱好闲逛、爱好大吃大喝，有害处。”

水产养殖的未来在于多样性——多样的物种、多样的方法以及多样的人才共同努力。

It is vain to talk of the interest of the community， without understanding what is the interest of the individual.

抽象是数学的关键。

You think you know when you can learn, are more sure when you can write, even more when you can teach, but certain when you can program.