I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.

Freedom is a condition of mind,and the best way to secure it is to breed it.

实验室笔记本是科学家最诚实的伙伴。

课程必须被视为达到目的的手段，而不是目的本身。

可持续林业不仅仅是砍伐树木；它关乎我们星球的未来。