解释：只要有一人起表率作用，就能带动其他人效仿。一个人的行为和言行影响着他人的行为和态度。

"The beauty of science is that it is constantly evolving and there is always something new to discover."

追求理解是人类精神最高尚的追求。

"Time is a thief, but it's also a giver. You just have to be willing to see the gifts."

The real tragedy of the poor is that they can afford nothing but self-denial.