There is only one good, which is knowledge, and one evil, which is ignorance.
在计算机科学领域,数学严谨性是构建可靠高效算法的基石。
Freedom of use is the most important quality of space.
One cannot think well, love well, sleep well, if one has not dined well.
A philosophical problem has the form: 'I don't know my way about.'