数学的研究对科学的发展就像空气或水一样。
過去を変えることはできないが、未来は変えられる。
从我的过去的一片荒墟中,至少,至少有这些我能记忆。
水产养殖是农业的下一个前沿领域。
世界是一本书,不旅行的人只读了一页。
We don't inherit the land from our ancestors; we borrow it from our children.
If one only wished to be happy, this could be easily accomplished; but we wish to be happier than other people, and this is always difficult, for we believe others to be happier than they are.