最好的管理是一门真正的科学，建立在明确的法律、规则和原则之上。

The teacher is not in school to impose certain ideas or to form certain habits in the child, but is there as a member of the community to select the influences which shall affect the child and to assist him in properly responding to those influences.

The computer is the ultimate polluter: its feces are indistinguish- able from the food it produces.

"La literatura es el último refugio de la humanidad en un mundo cada vez más deshumanizado."

I know how important this moment is and I don’t want to have any regrets.

生命是用来度过的，不是用来节省的。

对称性不仅是自然的一种属性，而且是寻找物理定律的指导原则。