解释:不可以不知道活着的乐趣,也不可以不知道虚度光阴的担忧。
A thermonuclear war cannot be considered a continuation of politics by other means (according to the formula of Clausewitz). It would be a means of universal suicide.
我不完美,但我一直在努力改进。
 消灭一个错误,其贡献等同于、有时甚至超过建立一条新真理或新事实。