每一个挑战都是让你变得更强大的机会。

Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.

The true cost of unsustainable fishing is far greater than what we see on the surface.

孩子独立的智能发展无可限量，它直接依赖孩子心智的力量，而不仅靠导师的工作。