Education is not the filling of a pail, but the lighting of a fire.
友情は、時を超えて続く絆だ。
黑洞不仅仅是宇宙的真空吸尘器;它们是测试我们物理理论极限的终极实验室。
The family is the basic unit of society, and it is under attack.
Every building is a compromise between dreams and reality.